1333

January–December

• May 18 – Siege of Kamakura in Japan: Forces loyal to Emperor Go-Daigo, led by Nitta Yoshisada, enter and destroy the city, breaking the power of the Hōjō clan over the Kamakura shogunate. The Kamakura period ends, and the Kenmu Restoration under Go-Daigo begins.
• June 6 – William Donn de Burgh, 3rd Earl of Ulster, is murdered as part of the Burke Civil War in Ireland.
• June 8 – King Edward III of England seizes the Isle of Man from Scottish control.
• June 19 – Ashikaga Takauji leads his army into Kyoto as part of the Kenmu Restoration.
• July 7 – The reign of Emperor Kōgon of Japan, first of the Northern Court Pretenders, ends.
• July 19 – Wars of Scottish Independence - Battle of Halidon Hill: Edward III of England decisively defeats Sir Archibald Douglas. Berwick-upon-Tweed returns to English control.
• November 4 – The River Arno floods, causing massive damage in Florence, as recorded by Giovanni Villani.

Date unknown

• A famine (lasting until 1337) breaks out in China, killing six million.
• A great famine takes place in Southern Europe. It is known to historians of Catalonia as , "the First Bad Year", an early notice of the catastrophes of the second half of this century.
• Jan IV of Dražic, Bishop of Prague, founds a friary and builds a stone bridge at Roudnice in Bohemia.
• The Kapellbrücke wooden bridge over the Reuss in Lucerne is built; by the 20th century it will be the world's oldest truss bridge and Europe's oldest covered bridge.
• The Venetian historian Marino Sanudo Torsello publishes his History of the realm of Romania, one of the most important sources on the history of Latin Greece.