The Arab engineer al-Jazari describes many mechanical inventions in his book (title translated to English) The Book of Knowledge of Ingenious Mechanical Devices.
King Valdemar II and Archbishop Andreas Sunonis raid Saaremaa Island, Estonia, forcing the islanders to submit. The Danes build a fortress, but finding no volunteers to man it, they burn it down themselves and leave the island.
Mukhali is appointed myriarch of the left wing of the newly reorganized Mongol army, and granted immunity for up to 9 breaches of the law.