Events

• August 12 - The Treaty of Nöteborg between Sweden and Novgorod (Russia) is signed, regulating the border for the first time
• Canonization of Saint Thomas Aquinas
• Lithuania: Vilnius becomes capital
• Pharos of Alexandria Lighthouse (one of the Seven Wonders of the world) is destroyed by a series of earthquakes

Births

• Constance of Penafiel, daughter of Juan Manuel "El Scritor" de Castile (died 1345)

Deaths

• Amadeus V of Savoy (born 1252)
• Andrew Harclay, 1st Earl of Carlisle, English military leader
• Gegeen Khan, Grand khan of the Mongol Empire (born 1303)

1323

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