Events of 1351

• March 27 - Battle of the Thirty: Guillaume de Montauban defeats the English.
• May 1 - Zürich joins the Swiss Confederation.
• King Ramathibodi I ascends the throne in Ayutthaya (now Thailand). He begins to propagate Theravada Buddhism as the state religion.
• King Gongmin ascends the throne in Goryeo.
• Emperor Go-Kogon of Japan succeeds Emperor Sukō, making them the third and fourth of the Northern Ashikaga Pretenders, respectively.
• The Statute of Laborers is enacted by the English Parliament, to deal with a labor shortage caused by the Black Death.
• Vantaa, Finland is first mentioned.
• Firuz Tughlaq succeeds Mohammad Tughlaq as Sultan of Delhi.
• The Mongolian-run Yuan Dynasty of China is permanently weakened by an uprising known as the Red Turban Rebellion.
• The Summa Dynasty in Sindh (now part of Pakistan) overthrows the Sumra Dynasty.
• The Turks cross the Dardanelles into Europe for the first time.

Births

• November 1 - Duke Leopold III of Austria (d.1386)
• Edmund Mortimer, 3rd Earl of March (d. 1381)
• Gian Galeazzo Visconti, first Duke of Milan (d. 1402)
• Wladyslav II Jagiello, Grand Duke of Lithuania and King of Poland (d. 1434)

Deaths

• May 24 - Abu al-Hasan 'Ali, Sultan of Morocco (b. 1297)
• Muhammad bin Tughluq, Sultan of Delhi

Ongoing events

• The Black Death (1347-1351)