History
1237
General
Population: 412 Million*
- Deaths: Jordanus Nemorarius the German scientist
Asia
- Mongolia: Mongols warriors under Batu raid Europe, conquer Russia, and take Moscow under Khanate of the Golden Horde
Europe
- General: Border between Scotland and England agreed upon - Treaty of York
End of German invasions of Italy with 15,000 dead
- Holy Roman Empire: Frederick II defeats Lombard League at Cortenuova
- Russia: Mongols conquer Russia and take Moscow, establishing Khanate of the Golden Horde