History of baseball in the United States

The earliest known mention of baseball in the US is either a 1786 diary entry by a Princeton student who describes playing "baste ball,"[1] or a 1791 Pittsfield, Massachusetts ordinance that barred the playing of baseball within 80 yards (73 m) of the town meeting house and its glass windows.[2] Another early reference reports that base ball was regularly played on Saturdays in 1823 on the outskirts of New York City in an area that today is Greenwich Village.[3] The Olympic Base Ball Club of Philadelphia was organized in 1833.

In 1903, the British-born sportswriter Henry Chadwick published an article speculating that baseball was derived from an English game called rounders, which Chadwick had played as a boy in England. Baseball executive Albert Spalding disagreed, asserting that the game was fundamentally American and had hatched on American soil. To settle the matter, the two men appointed a commission, headed by Abraham Mills, the fourth president of the National League of Professional Baseball Clubs. The commission, which also included six other sports executives, labored for three years, finally declaring that Abner Doubleday had invented the national pastime. Doubleday "...never knew that he had invented baseball. But 15 years after his death, he was anointed as the father of the game," writes baseball historian John Thorn. The myth about Doubleday inventing the game of baseball actually came from a Colorado mining engineer who claimed to have been present at the moment of creation. The miner's tale was never corroborated, nonetheless the myth was born and persists to this day.[4][5][6][7]

Invitation to the "1st Annual Ball of the Magnolia Ball Club" of New York, c. 1843, depicting the Colonnade Hotel at the Elysian Fields and a group of men playing baseball: the earliest known image of grown men playing the game.

Which does not mean that the Doubleday myth does not continue to be disputed; in fact, it is likely that the parentage of the modern game of baseball will be in some dispute until long after such future time when the game is no longer played.[8]

The first team to play baseball under modern rules is believed to be the New York Knickerbockers. The club was founded on September 23, 1845, as a breakaway from the earlier Gotham Club. The new club's by-laws committee, William R. Wheaton and William H. Tucker, formulated the Knickerbocker Rules, which, in large part, dealt with organizational matters but which also laid out some new rules of play.[9] One of these prohibited soaking or plugging the runner; under older rules, a fielder could put a runner out by hitting the runner with the thrown ball, as in the common schoolyard game of kickball. The Knickerbocker Rules required fielders to tag or force the runner. The new rules also introduced base paths, foul lines and foul balls; in "town ball" every batted ball was fair, as in cricket, and the lack of runner's lanes led to wild chases around the infield.[10]

Initially, Wheaton and Tucker's innovations did not serve the Knickerbockers well. In the first known competitive game between two clubs under the new rules, played at Elysian Fields in Hoboken, New Jersey on June 19, 1846, the "New York nine" (almost certainly the Gotham Club) humbled the Knickerbockers by a score of 23 to 1. Nevertheless, the Knickerbocker Rules were rapidly adopted by teams in the New York area and their version of baseball became known as the "New York Game" (as opposed to the less rule-bound "Massachusetts Game," played by clubs in New England, and "Philadelphia Town-ball").

In spite of its rapid growth in popularity, baseball had yet to overtake the British import, cricket. As late as 1855, the New York press was still devoting more space to coverage of cricket than to baseball.[11]

At 1857, convention of sixteen New York area clubs, including the Knickerbockers, the National Association of Base Ball Players (NABBP) was formed. It was the first official organization to govern the sport and the first to establish a championship. The convention also formalized three key features of the game: 90 feet distance between the bases, 9-man teams, and 9-inning games (under the Knickerbocker Rules, games were played to 21 runs). During the Civil War, soldiers from different parts of the United States played baseball together, leading to a more unified national version of the sport. Membership in the NABBP grew to almost 100 clubs by 1865 and to over 400 by 1867, including clubs from as far away as California. Beginning in 1869, the league permitted professional play, addressing a growing practice that had not been previously permitted under its rules. The first and most prominent professional club of the NABBP era was the Cincinnati Red Stockings in Ohio, which went undefeated in 1869 and half of 1870. After the Cincy club broke up at the end of that season, four key members including player/manager Harry Wright moved to Boston under owner and businessman Ivers Whitney Adams and became the "Boston Red Stockings" and the Boston Base Ball Club.

In 1858, at the Fashion Race Course in the Corona neighborhood of Queens (now part of New York City), the first games of baseball to charge admission were played.[12] The All Stars of Brooklyn, including players from the Atlantic, Excelsior, Putnam and Eckford clubs, took on the All Stars of New York (Manhattan), including players from the Knickerbocker, Gotham, Eagle and Empire clubs. These are commonly believed to the first all-star baseball games.[13][14]

Before the Civil War, baseball competed for public interest with cricket and regional variants of baseball, notably town ball played in Philadelphia and the Massachusetts Game played in New England. In the 1860s, aided by the Civil War, "New York" style baseball expanded into a national game. As its first governing body, the National Association of Base Ball Players was formed. The NABBP soon expanded into a true national organization, although most of the strongest clubs remained those based in the northeastern part of the country. In its 12-year history as an amateur league, the Atlantic Club of Brooklyn won seven championships, establishing themselves as the first true dynasty in the sport, although Mutual of New York was widely considered to be one of the best teams of the era as well. By the end of 1865, almost 100 clubs were members of the NABBP. By 1867, it ballooned to over 400 members, including some clubs from as far away as California. One of these western clubs, Chicago (dubbed the "White Stockings" by the press for their uniform hosiery), won the championship in 1870.[15] Because of this growth, regional and state organizations began to assume a more prominent role in the governance of the amateur sport at the expense of the NAABP, while the professionals soon sought a new governing body.

The NABBP of America was initially established upon principles of amateurism. However, even early in the Association's history, some star players such as James Creighton of Excelsior received compensation covertly or indirectly. In 1866, the NABBP investigated Athletic of Philadelphia for paying three players including Lip Pike, but ultimately took no action against either the club or the players. In many cases players, quite openly, received a cut of the gate receipts.[16] Clubs playing challenge series were even accused of agreeing beforehand to split the earlier games to guarantee a decisive (and thus more certain to draw a crowd) "rubber match".[17] To address this growing practice, and to restore integrity to the game, at its December 1868 meeting the NABBP established a professional category for the 1869 season. Clubs desiring to pay players were now free to declare themselves professional.

The Cincinnati Red Stockings were the first to declare themselves openly professional, and were aggressive in recruiting the best available players. Twelve clubs, including most of the strongest clubs in the NABBP, ultimately declared themselves professional for the 1869 season.

The first attempt at forming a major league produced the National Association of Professional Base Ball Players, which lasted from 1871 to 1875. The now all-professional Chicago "White Stockings" (today the Chicago Cubs), financed by businessman William Hulbert, became a charter member of the league along with a new Red Stockings club (now the Atlanta Braves), formed in Boston with four former Cincinnati players. The Chicagos were close contenders all season, despite the fact that the Great Chicago Fire had destroyed the team's home field and most of their equipment. Chicago finished the season in second place, but were ultimately forced to drop out of the league during the city's recovery period, finally returning to National Association play in 1874. Over the next couple of seasons, the Boston club dominated the league and hoarded many of the game's best players, even those who were under contract with other teams. After Davy Force signed with Chicago, and then breached his contract to play in Boston, Hulbert became discouraged by the "contract jumping" as well as the overall disorganization of the N.A. (for example, weaker teams with losing records or inadequate gate receipts would simply decline to play out the season), and thus spearheaded the movement to form a stronger organization. The end result of his efforts was the formation a much more "ethical" league, which was named the National League of Professional Base Ball Clubs. After a series of rival leagues were organized but failed (most notably the American Base Ball Association (1882-1891), which spawned the clubs which would ultimately become the Cincinnati Reds, Pittsburgh Pirates, St. Louis Cardinals and Brooklyn Dodgers), the current American League, evolving from the minor Western League of 1893, was established in 1901.

Cities that hosted 19th century MLB teams, with cities that still host their 19th century team in black. With the exception of a team in Washington and a few short-lived teams in Virginia and Kentucky, major league baseball would not expand out of the Northeast and the Midwest until after World War II.

In 1870, a schism developed between professional and amateur ballplayers. The NABBP split into two groups. The National Association of Professional Base Ball Players operated from 1871 through 1875 and is considered by some to have been the first major league. Its amateur counterpart disappeared after only a few years.

William Hulbert's National League, which was formed after the National Association proved ineffective, put its emphasis on "clubs" rather than "players". Clubs now had the ability to enforce player contracts and prevent players from jumping to higher-paying clubs. Clubs in turn were required to play their full schedule of games, rather than forfeiting scheduled games once out of the running for the league championship, a practice that had been common under the National Association. A concerted effort was also made to reduce the amount of gambling on games which was leaving the validity of results in doubt.[18]

Around this time, a gentlemen's agreement was struck between the clubs to exclude non-white players from professional baseball, a de facto ban that remained in effect until 1947. It is a common misconception that Jackie Robinson was the first African-American major-league ballplayer; he was actually only the first after a long gap (and the first in the modern era). Moses Fleetwood Walker and his brother Weldy Walker were unceremoniously dropped from major and minor-league rosters in the 1880s, as were other African-Americans in baseball. An unknown number of African-Americans played in the major leagues by representing themselves as Indians, or South or Central Americans, and a still larger number played in the minor leagues and on amateur teams. In the majors, however, it was not until the signing of Robinson (in the National League) and Larry Doby (in the American League) that baseball began to relax its ban on African-Americans.

The early years of the National League were tumultuous, with threats from rival leagues and a rebellion by players against the hated "reserve clause", which restricted the free movement of players between clubs. Competitive leagues formed regularly, and disbanded just as regularly. The most successful of these was the American Association of 1882–1891, sometimes called the "beer and whiskey league" for its tolerance of the sale of alcoholic beverages to spectators. For several years, the National League and American Association champions met in a postseason "World's Championship Series" — the first attempt at a World Series.

The Union Association survived for only one season (1884), as did the Players' League (1890), which was an attempt to return to the National Association structure of a league controlled by the players themselves. Both leagues are considered major leagues by many baseball researchers because of the perceived high caliber of play and the number of star players featured. However, some researchers have disputed the major league status of the Union Association, pointing out that franchises came and went and contending that the St. Louis club, which was deliberately "stacked" by the league's president (who owned that club), was the only club that was anywhere close to major-league caliber.

Baseball Players Practicing, by Thomas Eakins (1875)

In fact, there were dozens of leagues, large and small, in the late 19th Century. What made the National League "major" was its dominant position in the major cities, particularly the edgy, emotional nerve center of baseball that was New York City. Large, concentrated populations offered baseball teams national media distribution systems and fan bases that could generate sufficient revenues to afford the best players in the country.

A number of the other leagues, including the venerable Eastern League, threatened the dominance of the National League. The Western League, founded in 1893, became particularly aggressive. Its fiery leader Ban Johnson railed against the National League and promised to grab the best players and field the best teams. The Western League began play in April 1894 with teams in Detroit (now the American League Detroit Tigers, the only league team that has not moved since), Grand Rapids, Indianapolis, Kansas City, Milwaukee, Minneapolis, Sioux City and Toledo. Prior to the 1900 season, the league changed its name to the American League and moved several franchises to larger, strategic locations. In 1901 the American League declared its intent to operate as a major league.

The resulting bidding war for players led to widespread contract-breaking and legal disputes. One of the most famous involved star second baseman Napoleon Lajoie, who in 1901 went across town in Philadelphia from the National League Phillies to the American League Athletics. Barred by a court injunction from playing baseball in the state of Pennsylvania the next year, Lajoie was traded to the Cleveland team, where he played and managed for many years.

The war between the American and National leagues caused shock waves across the baseball world. At a meeting in 1901, the other baseball leagues negotiated a plan to maintain their independence. On September 5, 1901 Patrick T. Powers, president of the Eastern League announced the formation of the second National Association of Professional Baseball Leagues, the NABPL or "NA" for short.

These leagues did not consider themselves "minor"—a term that did not come into vogue until St. Louis Cardinals GM Branch Rickey pioneered the farm system in the 1930s. Nevertheless, these financially troubled leagues, by beginning the practice of selling players to the more affluent National and American leagues, embarked on a path that eventually led to the loss of their independent status.

Poster for University of Pennsylvania vs. Georgetown University baseball game, circa 1901, by John E. Sheridan.

Ban Johnson had other designs for the NA. While the NA continues to this day, he saw it as a tool to end threats from smaller rivals who might some day want to expand in other territories and threaten his league's dominance.

After 1902 both leagues and the NABPL signed a new National Agreement which achieved three things:

• First and foremost, it governed player contracts that set up mechanisms to end the cross-league raids on rosters and reinforced the power of the hated reserve clause that kept players virtual slaves to their baseball owner/masters.
• Second, it led to the playing of a "World Series" in 1903 between the two major league champions. The first World Series was won by Boston of the American League.
• Lastly, it established a system of control and dominance for the major leagues over the independents. There would not be another Ban Johnson-like rebellion from the ranks of leagues with smaller cities. Selling off player contracts was rapidly becoming a staple business of the independent leagues. During the rough and tumble years of the American–National struggle, player contracts were violated at the independents as well, as players that a team had developed would sign with the majors without any form of compensation to the indy club.

The new agreement tied independent contracts to the reserve-clause national league contracts. Baseball players were a commodity, like cars. $5,000 bought a player's skill set. It set up a rough classification system for independent leagues that regulated the dollar value of contracts, the forerunner of the system refined by Rickey and used today.

It also gave the NA great power. Many independents walked away from the 1901 meeting. The deal with the NA punished those other indies who had not joined the NA and submitted to the will of the majors. The NA also agreed to the deal so as to prevent more pilfering of players with little or no compensation for the players' development. Several leagues, seeing the writing on the wall, eventually joined the NA, which grew in size over the next several years.

In the very early part of the 20th century, known as the "dead-ball era", baseball rules and equipment favored the "inside game" and the game was played more violently and aggressively than it is today. This period ended in the 1920s with several changes that gave advantages to hitters. In the largest parks, the outfield fences were brought closer to the infield. In addition, the strict enforcement of new rules governing the construction and regular replacement of the ball[19] caused it to be easier to hit, and be hit harder.

The first professional black baseball club, the Cuban Giants, was organized in 1885. Subsequent professional black baseball clubs played each other independently, without an official league to organize the sport. Rube Foster, a former ballplayer, founded the Negro National League in 1920. A second league, the Eastern Colored League, was established in 1923. These became known as the Negro leagues, though these leagues never had any formal overall structure comparable to the Major Leagues. The Negro National League did well until 1930, but folded during the Great Depression.

From 1942 to 1948, the Negro World Series was revived. This was the golden era of Negro league baseball, a time when it produced some of its greatest stars. In 1947, Jackie Robinson signed a contract with the Brooklyn Dodgers, breaking the color barrier that had prevented talented African-American players from entering the white-only major leagues. Although the transformation was not instantaneous, baseball has since become fully integrated. While the Dodgers' signing of Robinson was a key moment in baseball and civil rights history, it prompted the decline of the Negro leagues. The best black players were now recruited for the Major Leagues, and black fans followed. The last Negro league teams folded in the 1960s.

Pitchers dominated the game in the 1960s and early 1970s. In 1973, the designated hitter (DH) rule was adopted by the American League, while in the National League pitchers still bat for themselves to this day. The DH rule now constitutes the primary difference between the two leagues. The rule has been applied in a variety of ways during the World Series; currently, the DH rule applies when Series games are played in an American League stadium, and pitchers bat during Series games played in National League stadiums. There continues to be disagreement about the future of the DH rule in the World Series.[20]

During the late 1960s, the Baseball Players Union became much stronger and conflicts between owners and the players' union led to major work stoppages in 1972, 1981, and 1994. The 1994 baseball strike led to the cancellation of the World Series, and was not settled until the spring of 1995. In the late 1990s, functions that had been administered separately by the two major leagues' administrations were united under the rubric of Major League Baseball.

Cy Young, 1911 baseball card

Cities that hosted MLB teams from 1903 to 1953; cities that hosted two teams are in black, cities that hosted one team are in red, and New York/Brooklyn, with three teams, is in orange. Major league baseball did not experience relocation or expansion between 1903 and 1953.

The period 1900–1919 is commonly called the "Dead-ball era", with low-scoring games dominated by pitchers such as Walter Johnson, Cy Young, Christy Mathewson, and Grover Cleveland Alexander. The term also accurately describes the condition of the baseball itself. Baseballs cost three dollars apiece, which in 1900 would be equal to $92 today; club owners were therefore reluctant to spend much money on new balls if not necessary. It was not unusual for a single baseball to last an entire game. By the end of the game, the ball would be dark with grass, mud, and tobacco juice, and it would be misshapen and lumpy from contact with the bat. Balls were only replaced if they were hit into the crowd and lost, and many clubs employed security guards expressly for the purpose of retrieving balls hit into the stands—a practice unthinkable today.

As a consequence, home runs were rare, and the "inside game" dominated—singles, bunts, stolen bases, the hit-and-run play, and other tactics dominated the strategies of the time.

Despite this, there were also several superstar hitters, the most famous being Honus Wagner, held to be one of the greatest shortstops to ever play the game, and Detroit's Ty Cobb, the "Georgia Peach." His career batting average of .366 has yet to be bested.

The "Black Sox"

Shoeless Joe Jackson

Main article: Black Sox Scandal

The fix of baseball games by gamblers and players working together had been suspected as early as the 1850s.[24] Hal Chase was particularly notorious for throwing games, but played for a decade after gaining this reputation; he even managed to parlay these accusations into a promotion to manager. Even baseball stars such as Ty Cobb and Tris Speaker have been credibly alleged to have fixed game outcomes. When MLB's complacency during this "Golden Age" was eventually exposed after the 1919 World Series, it became known as the Black Sox scandal.

After an excellent regular season (88–52, .629 W%), the Chicago White Sox were heavy favorites to win the 1919 World Series. Arguably the best team in baseball, the White Sox had a deep lineup, a strong pitching staff, and a good defense. Even though the National League champion Cincinnati Reds had a superior regular season record (96–44, .689 W%,) no one, including gamblers and bookmakers, anticipated the Reds having a chance. When the Reds triumphed 5–3, many pundits cried foul.

At the time of the scandal, the White Sox were arguably the most successful franchise in baseball, with excellent gate receipts and record attendance. At the time, most baseball players were not paid especially well and had to work other jobs during the winter to survive. Some elite players on the big-city clubs made very good salaries, but Chicago was a notable exception.

For many years, the White Sox were owned and operated by Charles Comiskey, who paid the lowest player salaries, on average, in the American League. The White Sox players all intensely disliked Comiskey and his penurious ways, but were powerless to do anything, thanks to baseball's so-called "reserve clause" that prevented players from switching teams without their team owner's consent.

By late 1919, Comiskey's tyrannical reign over the Sox had sown deep bitterness among the players, and White Sox first baseman Arnold "Chick" Gandil decided to conspire to throw the 1919 World Series. He persuaded gambler Joseph "Sport" Sullivan, with whom he had had previous dealings, that the fix could be pulled off for $100,000 total (which would be equal to $1,474,664 today), paid to the players involved.[25] New York gangster Arnold Rothstein supplied the $100,000 that Gandil had requested through his lieutenant Abe Attell, a former featherweight boxing champion.

After the 1919 series, and through the beginning of the 1920 baseball season, rumors swirled that some of the players had conspired to purposefully lose.[26] At last, in 1920, a grand jury was convened to investigate these and other allegations of fixed baseball games.[27] Eight players (Charles "Swede" Risberg, Arnold "Chick" Gandil, "Shoeless" Joe Jackson, Oscar "Happy" Felsch, Eddie Cicotte, George "Buck" Weaver, Fred McMullin, and Claude "Lefty" Williams) were indicted and tried for conspiracy. The players were ultimately acquitted.

However, the damage to the reputation of the sport of baseball led the team owners to appoint Federal judge Kenesaw Mountain Landis to be the first Commissioner of Baseball. His first act as commissioner was to ban the "Black Sox" from professional baseball for life. The White Sox, meanwhile would not return to the World Series until 1959 and it was not until their next appearance in 2005 they won the World Series.

Until July 5, 1947, baseball had two histories. One fills libraries, while baseball historians are only just beginning to chronicle the other fully: African Americans have played baseball as long as white Americans. Players of color, both African-American and Hispanic, played for white baseball clubs throughout the very early days of the growing amateur sport. Moses Fleetwood Walker is considered the first African-American to play at the major league level, in 1884. But soon, and dating through the first half of the 20th Century, an unwritten but iron-clad color line fenced African-Americans and other players of color out of the "majors".

The Negro leagues were American professional baseball leagues comprising predominantly African-American teams. The term may be used broadly to include professional black teams outside the leagues and it may be used narrowly for the seven relatively successful leagues beginning 1920 that are sometimes termed "Negro major leagues".

The first professional team, established in 1885, achieved great and lasting success as the Cuban Giants, while the first league, the National Colored Base Ball League, failed in 1887 after only two weeks due to low attendance. The Negro American League of 1951 is considered the last major league season and the last professional club, the Indianapolis Clowns, operated amusingly rather than competitively from the mid-1960s to 1980s.

Babe Ruth in 1920.

Graph depicting the yearly MLB attendance versus total U.S. population

It was not the Black Sox scandal which put an end to the dead-ball era, but a rule change and a single player.

Some of the increased offensive output can be explained by the 1920 rule change that outlawed tampering with the ball. Pitchers had developed a number of techniques for producing "spitballs", "shine balls" and other trick pitches which had "unnatural" flight through the air. Umpires were now required to put new balls into play whenever the current ball became scuffed or discolored. This rule change was enforced all the more stringently following the death of Ray Chapman, who was struck in the temple by a pitched ball from Carl Mays in a game on August 16, 1920 (he died the next day). Discolored balls, harder for batters to see and therefore harder for batters to dodge, have been rigorously removed from play ever since. This meant that batters could now see and hit the ball with less difficulty. With the added prohibition on the ball being purposely wetted or scuffed in any way, pitchers had to rely on pure athletic skill—changes in grip, wrist angle, arm angle and throwing dynamics, plus a new and growing appreciation of the aerodynamic effect of the spinning ball's seams—to pitch with altered trajectories and hopefully confuse or distract batters.

At the end of the 1919 season Harry Frazee, then owner of the Boston Red Sox, sold a group of his star players to the New York Yankees. Among them was George Herman Ruth, known affectionately as "Babe". Ruth's career mirrors the shift in dominance from pitching to hitting at this time. He started his career as a pitcher in 1914, and by 1916 was considered one of the dominant left-handed pitchers in the game. When Edward Barrow, managing the Red Sox, converted him to an outfielder, ballplayers and sportswriters were shocked. It was apparent, however, that Ruth's bat in the lineup every day was far more valuable than Ruth's arm on the mound every fourth day. Ruth swatted 29 home runs in his last season in Boston. The next year, as a Yankee, he would hit 54 and in 1921 he hit 59. His 1927 mark of 60 home runs would last until 1961.

Hall of Famer Hank Greenberg

Ruth's power hitting ability demonstrated a dramatic new way to play the game, one that was extremely popular with fans. Accordingly, ballparks were expanded, sometimes by building outfield "bleacher" seating which shrunk the size of the outfield and made home runs more frequent. In addition to Ruth, hitters such as Rogers Hornsby also took advantage, with Hornsby compiling extraordinary figures for both power and average in the early 1920s. By the late 1920s and 1930s all the good teams had their home-run hitting "sluggers": the Yankees' Lou Gehrig, Jimmie Foxx in Philadelphia, Hank Greenberg in Detroit and in Chicago Hack Wilson were the most storied. While the American League championship, and to a lesser extent the World Series, would be dominated by the Yankees, there were many other excellent teams in the inter-war years. The National League's St. Louis Cardinals, for example, would win three titles in nine years, the last with a group of players known as the "Gashouse Gang".

The first radio broadcast of a baseball game was on August 5, 1921 over Westinghouse station KDKA from Forbes Field in Pittsburgh. Harold Arlin announced the Pirates-Phillies game. Attendances in the 1920s were consistently better than they had been before WWI. The interwar peak average attendance was 8,211 in 1930, but baseball was hit hard by the Great Depression and in 1933 the average fell below five thousand for the only time between the wars. At first wary of radio's potential to impact ticket sales at the park, owners began to make broadcast deals and by the late 1930s, all teams' games went out over the air.

1933 also saw the introduction of the yearly All-Star game, a mid-season break in which the greatest players in each league play against one another in a hard-fought but officially meaningless demonstration game. In 1936 the Baseball Hall of Fame in Cooperstown, NY, was instituted and five players elected: Ty Cobb, Walter Johnson, Christy Mathewson, Babe Ruth and Honus Wagner. The Hall formally opened in 1939 and, of course, remains open to this day.

In 1941, a year which saw the premature death of Lou Gehrig, Boston's great left fielder Ted Williams had a batting average over .400 – the last time anyone has achieved that feat. During the same season Joe DiMaggio hit successfully in 56 consecutive games, an accomplishment both unprecedented and unequaled.

After the United States entered World War II after the attack on Pearl Harbor, Landis asked Franklin D. Roosevelt whether professional baseball should continue during the war. In the "Green Light Letter", the US president replied that baseball was important to national morale, and asked for more night games so day workers could attend. Thirty-five Hall of Fame members and more than 500 Major League Baseball players served in the war, but with the exception of D-Day, games continued.[29] Both Williams and DiMaggio would miss playing time in the services, with Williams also flying later in the Korean War. During this period Stan Musial led the St. Louis Cardinals to the 1942, 1944 and 1946 World Series titles. The war years also saw the founding of the All-American Girls Professional Baseball League.

Baseball boomed after World War II. 1945 saw a new attendance record and the following year average crowds leapt nearly 70% to 14,914. Further records followed in 1948 and 1949, when the average reached 16,913. While average attendances slipped to somewhat lower levels through the 1950s, 1960s and the first half of the 1970s, they remained well above pre-war levels, and total seasonal attendance regularly hit new highs from 1962 onward as the number of major league teams—and games—increased.

The post-War years in baseball also witnessed the racial integration of the sport. Participation by African Americans in organized baseball had been precluded since the 1890s by formal and informal agreements, with only a few players being surreptitiously included in lineups on a sporadic basis.

American society as a whole moved toward integration in the post-War years, partially as a result of the distinguished service by African American military units such as the Tuskegee Airmen, 366th Infantry Regiment, and others. During the baseball winter meetings in 1943, noted African American athlete and actor Paul Robeson campaigned for integration of the sport.[30] After World War II ended, several team managers considered recruiting members of the Negro leagues for entry into organized baseball. In the early 1920s, New York Giants' manager John McGraw slipped a black player, Charlie Grant, into his lineup (reportedly by passing him off to the front office as an Indian), and McGraw's wife reported finding names of dozens of Negro players that McGraw fantasized about signing, after his death. Pittsburgh Pirates owner Bill Bensawanger reportedly signed Josh Gibson to a contract in 1943, and the Washington Senators were also said to be interested in his services. But those efforts (and others) were opposed by Kenesaw Mountain Landis, baseball's powerful commissioner and a staunch segregationist.[31] Bill Veeck claimed[32]) that Landis blocked his purchase of the Philadelphia Phillies because he planned to integrate the team. While this account is disputed, Landis was in fact opposed to integration, and his death in 1944 (and subsequent replacement as Commissioner by Happy Chandler) removed a major obstacle for black players in the major leagues.

The general manager who would be eventually successful in breaking the color barrier was Branch Rickey of the Brooklyn Dodgers. Rickey himself had experienced the issue of segregation. While playing and coaching for his college team at Ohio Wesleyan University, Rickey had a black teammate named Charles Thomas. On a road trip through southern Ohio his fellow player was refused a room in a hotel. Although Rickey was able to get the player into his room for that night, he was taken aback when he reached his room to find Thomas upset and crying about this injustice. Rickey related this incident as an example of why he wanted a full desegregation of not only baseball, but the entire nation.

In the mid-1940s, Rickey had compiled a list of Negro league ballplayers for possible major league contracts. Realizing that the first African American signee would be a magnet for prejudiced sentiment, however, Rickey was intent on finding a player with the distinguished personality and character that would allow him to tolerate the inevitable abuse. Rickey's sights eventually settled on Jackie Robinson, a shortstop with the Kansas City Monarchs. Although probably not the best player in the Negro leagues at the time, Robinson was an exceptional talent, was college-educated, and had the marketable distinction of having served as an officer during World War II. Even more importantly, Rickey judged Robinson to possess the inner strength to withstand the inevitable harsh animosity to come. To prepare him for the task, Rickey played Robinson in 1946 for the Dodgers' minor league team, the Montreal Royals, which proved an arduous emotional challenge, though Robinson enjoyed fervently enthusiastic support from the Montreal fans. On April 15, 1947, Robinson broke the color barrier, which had been tacitly recognized for over 50 years, with his appearance for the Brooklyn Dodgers at Ebbets Field.

Eleven weeks later, on July 5, 1947, the American League was integrated by the signing of Larry Doby to the Cleveland Indians. Over the next few years a handful of black baseball players made appearances in the majors, including Roy Campanella (teammate to Robinson in Brooklyn) and Satchel Paige (teammate to Doby in Cleveland).[33] Paige, who had pitched more than 2400 innings in the Negro leagues, sometimes two and three games a day, was still effective at 42, and still playing at 59. His ERA in the Major Leagues was 3.29.

However, the initial pace of integration was slow. By 1953, only six of the sixteen major league teams had a black player on the roster.[34] The Boston Red Sox became the last major league team to integrate its roster with the addition of Pumpsie Green on July 21, 1959.[35] While limited in numbers, the on-field performance of early black major league players was outstanding. In the fourteen years from 1947 to 1960, black players won one or more of the Rookie of the Year awards nine times.[33]

While never prohibited in the same fashion as African Americans, Latin American players also benefitted greatly from the integration era. In 1951, two Chicago White Sox, Venezuelan-born Chico Carrasquel and Cuban-born (and black) Minnie Miñoso, became the first Hispanic All-Stars.[34]

According to some baseball historians, Robinson and the other African American players helped reestablish the importance of baserunning and similar elements of play that were previously de-emphasized by the predominance of power hitting.

From 1947 to the 1970s, African American participation in baseball rose steadily. By 1974, 27% of baseball players were African American.[36] As a result of this on-field experience, minorities began to experience long-delayed gains in managerial positions within baseball. In 1975, Frank Robinson (who had been the 1956 Rookie of the Year with the Cincinnati Reds) was named player-manager of the Cleveland Indians, making him the first African American manager in the major leagues.

Although these front-office gains continued, Major League Baseball saw a lengthy slow decline in the percentage of black players after the mid-1970s. By 2007, African Americans made up less than 9% of major-leagues players. While this trend is largely attributed to an increased emphasis on recruitment of players from Latin America (with the number of Hispanic players in the major leagues rising to 29% by 2007[37][38]), other factors have been cited as well. Hall of Fame player Dave Winfield, for instance, has pointed out that urban America provides fewer resources for youth baseball than in the past.[36] Despite this continued prevalence of Hispanic players, the percentage of black players rose again in 2008 to 10.2%.[39]

Arturo Moreno became the first Hispanic owner of an MLB franchise when he purchased the Anaheim Angels in 2004.

In 2005, a Racial and Gender Report Card on Major League Baseball was issued, which generally found positive results on the inclusion of African Americans and Latinos in baseball, and gave Major League Baseball a grade of "A" or better for opportunities for players, managers and coaches as well as for MLB's central office.[40] At that time, 37% of major league players were people of color: Latino (26 percent), African-American (9 percent) or Asian (2 percent). Also by 2004, 29% of the professional staff in MLB's central office were people of color, 11% of team vice presidents were people of color, and seven of the league's managers were of color (four African-Americans and three Latinos).[40]

Baseball had been in the West for almost as long as the National League and the American League had been around. It evolved into the Pacific Coast League (PCL), which included the Hollywood Stars, Los Angeles Angels, Oakland Oaks, Portland Beavers, Sacramento Solons, San Francisco Seals, San Diego Padres, Seattle Rainiers.

The PCL was huge in the West. A member of the National Association of Professional Baseball Leagues, it kept losing great players to the National and the American leagues for less than $8,000 a player.

The PCL was far more independent than the other "minor" leagues, and rebelled continuously against their Eastern masters. Clarence Pants Rowland, the President of the PCL, took on baseball commissioners Kenesaw Mountain Landis and Happy Chandler at first to get better equity from the major leagues, then to form a third major league. His efforts were rebuffed by both commissioners. Chandler and several of the owners, who saw the value of the markets in the West, started to plot the extermination of the PCL. They had one thing that Rowland did not: The financial power of the Eastern major league baseball establishment.

No one was going to back a PCL club building a major-league size stadium if the National or the American League was going to build one too, which discouraged investment in PCL ballparks. PCL games and rivalries still drew fans, but the leagues' days of dominance in the West were numbered.

1961–1962

Along with the Angels, the other 1961 expansion team was the Washington Senators, who joined the American League and took over the nation's capital when the previous Senators moved to Minnesota and became the Twins. 1961 is also noted as being the year in which Roger Maris surpassed Babe Ruth's single season home run record, hitting 61 for the New York Yankees, albeit in a slightly longer season than Ruth's. To keep pace with the American League—which now had ten teams—the National League likewise expanded to ten teams, in 1962, with the addition of the Houston Colt .45s and New York Mets.

Oakland–Alameda County Coliseum, opened in 1966, was built in part to lure the Athletics from Kansas City.

1972–2013

A 2005 vintage base ball game, played by 1886 rules. Vintage games are live contests that seek to portray the authenticity of the early game. (The term "reenactment" is a common misnomer; games are contested and not meant to recreate a specific historical event

In 1972, the second Washington Senators moved to the Dallas-Fort Worth area and became the Texas Rangers.

In 1977, the American League expanded to fourteen teams, with the newly formed Seattle Mariners and Toronto Blue Jays. Sixteen years later, in 1993, the National League likewise expanded to fourteen teams, with the newly formed Colorado Rockies and Florida Marlins (now Miami Marlins).

Beginning with the 1994 season, both the AL and the NL were divided into three divisions (East, West, and Central), with the addition of a wild card team (the team with the best record among those finishing in second place) to enable four teams in each league to advance to the preliminary division series. However, due to the 1994–95 Major League Baseball strike (which canceled the 1994 World Series), the new rules did not go into effect until the 1995 World Series.

In 1998, the AL and the NL each added a fifteenth team, for a total of thirty teams in Major League Baseball. The Arizona Diamondbacks joined the National League, and the Tampa Bay Devil Rays—now called simply the Rays—joined the American League. In order to keep the number of teams in each league at an even number (14 – AL, 16 – NL), Milwaukee changed leagues and became a member of the National League.[42] Two years later, the NL and AL ended their independent corporate existences and merged into a new legal entity named Major League Baseball; the two leagues remained as playing divisions. In 2001, MLB took over the struggling Montreal Expos franchise and, after the 2004 season, moved it to Washington, DC, which had been clamoring for a team ever since the second Senators' departure in 1972; the club was renamed the Nationals.[43]

In 2013, in keeping with Commissioner Bud Selig's desire for expanded interleague play, the Houston Astros were shifted from the National to the American League; with an odd number (15) in each league, an interleague contest was played somewhere almost every day during the season. At this time the divisions within each league were shuffled to create six equal divisions of five teams.

Graph showing, by year, the average number of runs per MLB game

By the late 1960s, the balance between pitching and hitting had swung back to favor of the pitchers once more. In 1968 Carl Yastrzemski won the American League batting title with an average of just .301, the lowest in history. That same year, Detroit Tigers pitcher Denny McLain won 31 games – making him the last pitcher to win 30 games in a season. St. Louis Cardinals starting pitcher Bob Gibson achieved an equally remarkable feat by allowing an ERA of just 1.12.

In response to these events, major league baseball implemented certain rule changes in 1969 to benefit the batters. The pitcher's mound was lowered, and the strike zone was reduced.

In 1973 the American League, which had been suffering from much lower attendance than the National League, made a move to increase scoring even further by initiating the designated hitter rule.

Hall of Famer Sandy Koufax, who refused to re-sign his contract

From the time of the formation of the Major Leagues to the 1960s, the team owners controlled the game. After the so-called "Brotherhood Strike" of 1890 and the failure of the Brotherhood of Professional Base Ball Players and its Players National League, the owners' control of the game seemed absolute. It lasted over 70 years despite a number of short-lived players organizations. In 1966, however, the players enlisted the help of labor union activist Marvin Miller to form the Major League Baseball Players Association (MLBPA). The same year, Sandy Koufax and Don Drysdale – both Cy Young Award winners for the Los Angeles Dodgers – refused to re-sign their contracts, and the era of the reserve clause, which held players to one team, was drawing to an end.

The first legal challenge came in 1970. Backed by the MLBPA, St. Louis Cardinals outfielder Curt Flood took the leagues to court to negate a player trade, citing the 13th Amendment and antitrust legislation. In 1972 he finally lost his case before the United States Supreme Court by a vote of 5 to 3, but gained large-scale public sympathy, and the damage had been done. The reserve clause survived, but it had been irrevocably weakened. In 1975 Andy Messersmith of the Dodgers and Dave McNally of the Montreal Expos played without contracts, and then declared themselves free agents in response to an arbitrator's ruling. Handcuffed by concessions made in the Flood case, the owners had no choice but to accept the collective bargaining package offered by the MLBPA, and the reserve clause was effectively ended, to be replaced by the current system of free-agency and arbitration.

While the legal challenges were going on, the game continued. In 1969 the "Miracle Mets", just 7 years after their formation, recorded their first winning season, won the National League East and finally the World Series.

On the field, the 1970s saw some of the longest-standing records fall, along with the rise of two powerhouse dynasties. In Oakland, the Swinging A's were overpowering, winning the Series in '72, '73 and '74, and five straight division titles. The strained relationships between teammates, who included Catfish Hunter, Vida Blue and Reggie Jackson, gave the lie to the need for "chemistry" between players. The National League, on the other hand, belonged to the Big Red Machine in Cincinnati, where Sparky Anderson's team, which included Pete Rose as well as Hall of Famers Tony Pérez, Johnny Bench and Joe Morgan, succeeded the A's run in 1975.

The decade also contained great individual achievements. On April 8, 1974, Hank Aaron of the Atlanta Braves hit his 715th career home run, surpassing Babe Ruth's all-time record. He would retire in 1976 with 755 and that was just one of numerous records he achieved, many of which, including Total bases scored, still stand today. There was great pitching too: between 1973 and 1975, Nolan Ryan threw 4 "no-hit" games. He would add a record-breaking fifth in 1981 and two more before his retirement in 1993, by which time he had also accumulated 5,714 strikeouts, another record, in a 27-year career.

From the 1980s onward, the major league game changed dramatically, due to the combined effects of free agency, improvements in the science of sports conditioning, changes in the marketing and television broadcasting of sporting events, and the push by brand-name products for greater visibility. These events lead to greater labor difficulties, fan disaffection, skyrocketing prices, changes in game-play, and problems with the use of performance-enhancing substances like steroids tainting the race for records. In spite of all this, stadium crowds generally grew. Average attendances first broke 20,000 in 1979 and 30,000 in 1993. That year total attendance hit 70 million, but baseball was hit hard by a strike in 1994, and as of 2005 it had marginally improved on those 1993 records. (Update: Between 2009 and 2017, average attendance hovered just over the 30,000 mark, with numbers falling into the 28,000s in '18 and 19.[44] The 2019 season saw a million fewer tickets sold than the banner year of 2007, however revenues to major league baseball from media rights fees increased total revenue to $10 billion in 2018, a 70% rise from a decade before.[45])

Home run mania and the second coming of baseball

Mark McGwire hits a home run during his last Major League season in 2001

The cancellation of the 1994 World Series was a severe embarrassment for Major League Baseball. Fans were outraged and frustrated, their love of the game shaken to its core. The strike was declared an act of war,[62] and fought back: attendance figures and broadcast ratings were lower in 1995 than before the strike. It would be a decade before baseball recovered from the disruption.[63]

On September 6, 1995, Baltimore Orioles shortstop, Cal Ripken, Jr., played his 2,131st consecutive game, breaking Lou Gehrig's 56-year-old record. This was the first celebratory moment in baseball after the strike. Ripken continued his streak for another three years, voluntarily ending it at 2,632 consecutive games played on September 20, 1998.

In 1997, the expansion Florida Marlins won the World Series in just their fifth season. This made them the third-youngest team to win the Fall Classic (behind the 1903 Boston Red Sox and later the 2001 Arizona Diamondbacks, who won in their fourth season). Virtually all the key players on the 1997 Marlins team were soon traded or let go to save payroll costs (although the 2003 Marlins did win a second world championship).

In 1998, St. Louis Cardinals first baseman Mark McGwire and Chicago Cubs outfielder Sammy Sosa engaged in a home run race for the ages. With both rapidly approaching Roger Maris's record of 61 home runs (set in 1961), the entire nation watched as the two power hitters raced to be the first to break into uncharted territory. McGwire reached 62 first on September 8, 1998, with Sosa right behind. Sosa finished the season with 66 home runs, well behind McGwire's unheard-of 70. However, recent steroid allegations have marred the season in the minds of many fans.

That same year, the New York Yankees won a record 125 games, including going 11–2 in the postseason, to win the World Series as what many consider to be one of the greatest teams of all time.

McGwire's record of 70 would last a mere three years following the meteoric rise of veteran San Francisco Giants left fielder Barry Bonds in 2001. In 2001 Bonds knocked out 73 home runs, breaking the record set by McGwire by hitting his 71st on October 5, 2001. In addition to the home run record, Bonds also set single-season marks for base on balls with 177 (breaking the previous record of 170, set by Babe Ruth in 1923) and slugging percentage with .863 (breaking the mark of .847 set by Ruth in 1920). Bonds continued his torrid home run hitting in the next few seasons, hitting his 660th career home run on April 12, 2004, tying him with his godfather Willie Mays for third place on the all-time career home runs list. He hit his 661st home run the next day, April 13, to take sole possession of third place. Only three years later Bonds surpassed the great Hank Aaron to become baseball's most prolific home run hitter.

However, none of Bonds' accomplishments in the 2000s have been without controversy. During his run, journalists questioned McGwire about his use of the steroid-precursor androstenedione, and in March 2005 he was unforthcoming when questioned as part of a Congressional inquiry into steroids. Bonds has also been dogged by allegations of steroid use and his involvement in the BALCO drugs scandal, as his personal trainer Greg Anderson pleaded guilty to supplying steroids (without naming Bonds as a recipient). Neither Bonds nor McGwire has failed a drug test at any time since there was no steroid-testing until 2003 after the new August 7, 2002 agreement between owners and players was reached. McGwire retired after the 2001 season; in 2010, he admitted to having used steroids throughout his MLB career.[64]

The 1990s also saw Major League Baseball expand into new markets as four new teams joined the league. In 1993, the Colorado Rockies and Florida Marlins began play, and in just their fifth year of existence, the Marlins became the first wild card team to win the championship.

Further information: 1997 World Series

The year 1998 brought two more teams into the mix, the Tampa Bay Devil Rays and the Arizona Diamondbacks, the latter of which become the youngest expansion franchise to win the championship.

Further information: 2001 World Series

The late 1990s were dominated by the New York Yankees, who won four out of five World Series championships from 1996 to 2000.

• 1876 – National League is established
• 1900 – National League "Classic Eight" lineup of teams is established: Chicago Cubs, Boston Braves, Brooklyn Dodgers, New York Giants, Philadelphia Phillies, Pittsburgh Pirates, Cincinnati Reds, and St. Louis Cardinals
• 1901 – American League is established with eight teams: Boston Red Sox, Chicago White Sox, Cleveland Indians, Detroit Tigers, Philadelphia Athletics, Washington Senators, Milwaukee Brewers, and Baltimore Orioles
• 1902 – Milwaukee Brewers move to St. Louis and become the Browns
• 1903 – Baltimore Orioles move to New York and become the Yankees
• 1953 – Boston Braves move to Milwaukee
• 1954 – St. Louis Browns move to Baltimore and become the Orioles
• 1955 – Philadelphia Athletics move to Kansas City
• 1958 – New York Giants move to San Francisco; Brooklyn Dodgers move to Los Angeles
• 1961 – Washington Senators move to Minneapolis–Saint Paul and become the Minnesota Twins; new Washington Senators (AL) and Los Angeles Angels (AL) created as expansion teams
• 1962 – Houston Astros (NL) and New York Mets (NL) created as expansion teams.
• 1966 – Milwaukee Braves move to Atlanta
• 1968 – Kansas City Athletics move to Oakland
• 1969 – San Diego Padres (NL), Montreal Expos (NL), Kansas City Royals (AL), and Seattle Pilots (AL) created as expansion teams
• 1970 – Seattle Pilots move to Milwaukee and become the Brewers
• 1972 – Washington Senators move to Dallas–Fort Worth and become the Texas Rangers
• 1977 – Seattle Mariners (AL) and Toronto Blue Jays (AL) created as expansion teams
• 1993 – Colorado Rockies (NL) and Miami Marlins (NL) created as expansion teams
• 1998 – Arizona Diamondbacks (NL) and Tampa Bay Rays (AL) created as expansion teams; Milwaukee Brewers switch from AL to NL
• 2005 – Montreal Expos move to Washington and become the Nationals
• 2013 – Houston Astros switch from NL to AL

• Timeline of Major League Baseball

• "Baseball Pictures from 1900 to 1940". Archived from the original on 2007-01-16.
• Alexander, Charles C. (2002). Breaking the Slump: Baseball in the Depression Era. New York: Columbia University Press. ISBN 0-231-11342-0.
• Bouton, Jim (1970). Ball Four: My Life and Hard Times Throwing the Knuckleball in the Major Leagues. World Publishing Company. ISBN 0-02-030665-2.
• James, Bill (1985). The Historical Baseball Abstract. New York: Villard.
• Lamoreaux, David (1977). "Baseball in the Late Nineteenth Century: The Source of its Appeal". Journal of Popular Culture. 11 (3): 597–613. doi:10.1111/j.0022-3840.1977.00597.x.
• Murphy, Cait (2007). Crazy '08: How a Cast of Cranks, Rogues, Boneheads, and Magnates Created the Greatest Year in Baseball History. New York: Smithsonian Books. ISBN 978-0-06-088937-1.
• Pepe, Phil. (2005). Catfish, Yaz, and Hammerin' Hank: The Unforgettable Era That Transformed Baseball. Chicago, Triumph Books. ISBN 978-1-57243-839-2
• Ritter, Lawrence (1984). The Glory of their Times (Revised ed.). New York: William Morrow.
• Ross, Brian (April 6, 2005). "Band of Brothers". Minor League News. Archived from the original on February 21, 2009.
• Seymour, Harold (1960). Baseball: The Early Years. New York: Oxford University Press. ISBN 0-19-500100-1.
• Sullivan, Dean A. (2010). Final Innings: A Documentary History of Baseball, 1972–2008. University of Nebraska Press. ISBN 978-0-8032-5965-2.
• Tygiel, Jules (2000). Past Time: Baseball as History. New York: Oxford University Press. ISBN 0-19-514604-2.

• A History of How the Game Has Changed
• Library of Congress: Spalding Base Ball Guides, 1889–1939
• Cycleback's Online Museum of Early Baseball Memorabilia
• Seth Swirsky's Baseball Memorabilia Collection
• Base Ball: A Journal of the Early Game
• Baseball Research Journal Archives