1279

Events 
 March 5 – Lithuanian forces led by Traidenis defeat the Teutonic Knights in the Battle of Aizkraukle.
 The first of the Statutes of Mortmain are passed under king Edward I of England, which prevents land from passing into possession of the church.
 The second of two main surveys of the Hundred Rolls, an English census seen as a follow up to the Domesday Book completed in 1086, is begun; it lasts until 1280.
 Al-Razi's important medical writings are translated into Latin by Faraj ben Salim some 350 years after Al-Razi's death.
 The Royal Mint of England moves into the Tower of London.
 Haapsalu town (Estonia) is founded.