1242

Years: 1239 1240 1241 - 1242 - 1243 1244 1245
Decades: 1210s 1220s 1230s - 1240s - 1250s 1260s 1270s
Centuries: 12th century - 13th century - 14th century

Events

April 5 - During a battle on the ice of Chudskoye Lake, Russian forces rebuff an invasion attempt by the Teutonic Knights.
Emperor Go-Saga ascends to the throne of Japan.
Batu Khan establishes the Golden Horde at Sarai.
Cleves, Germany is chartered as a city.
Kiel, Germany is chartered as a town.
The diocese of Warmia, Poland is created.
The archbishop of Wiesbaden conquers the city from the Duke of Nassau.
The Mongols invade the Seljuk sultanate.
German colonists arrive in Bratislava after the Mongols fail to conquer the city.
The Mongols of the Golden Horde devastate Bulgaria, and force the nation to pay tribute.
Timeline of medicine and medical technology - Ibn Nafis suggests that the right and left ventricles of the heart are separate and describes the lesser circulation of blood.