1240s
The 1240s was a decade of the Julian Calendar which began on January 1, 1240, and ended on December 31, 1249.
| Millennium: | 2nd millennium |
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Events
1240
By area
Asia
- December 6 – Batu Khan and the Golden Horde sack the Ruthenian city of Kiev.
- Tuan Mash'ika, an Arab, travels and introduces Islam to Sulu.
Europe
- July 15 – Battle of the Neva: Russian prince Alexander Nevsky defeats the Swedes, saving the Novgorod Republic from a full-scale enemy invasion from the North.
- The civil war era in Norway ends.
- The Flemish village Kaprijke is recognized as a city.
- Sancho II of Portugal conquers the cities of Ayamonte and Cacella from the Muslims, as part of the Reconquista.[1]
By topic
Religion
- June 12 – The Disputation of Paris begins at the court of Louis IX of France, where four rabbis defend the Talmud against Nicholas Donin's accusations of blasphemy.
- Saint Maurice starts to be portrayed as a Moor.
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Significant people
Fibonacci. Fibonacci sequence and Liber Abbaci
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References
- Picard, Christophe (2000). Le Portugal musulman (VIIIe-XIIIe siècle. L'Occident d'al-Andalus sous domination islamique. Paris: Maisonneuve & Larose. p. 110. ISBN 2-7068-1398-9.