1351

Events

January 14 - Edward III of England institutes the Treason Act 1351, defining treason in English law. It remains unrepealed into the 21st century.
February - Enactments by the Parliament of England:
* The Statute of Labourers deals with a labour shortage caused by the Black Death.
* Statute of Provisors prevents the Pope from appointing clergy to English benefices.
March 4 - The Ayutthaya Kingdom is established by King Uthong in modern-day Thailand. He begins to propagate Theravada Buddhism as the state religion.
March 23 - Firuz Shah Tughlaq succeeds Mohammad Tughlaq as ruler of the Delhi Sultanate. At this time, the Samma dynasty in Sindh breaks away from the Sultanate.
March 26 - War of the Breton Succession: Combat of the Thirty - Thirty chosen knights each, from the Kingdoms of France and England, fight to determine who will rule the Duchy of Brittany; a Franco-Breton victory is assured by the squire Guillaume de Montauban.
April 1 - Hundred Years' War: Battle of Saintes. - The French are defeated by the English.
April 8 - Hundred Years' War: Battle of Taillebourg. - The French are defeated by the English.
May 1 - Zürich joins the Old Swiss Confederacy.
November 26 - Emperor Sukō abdicates as 3rd Emperor of the Northern Court of Japan.

The Red Turban Rebellions break out in China, leading to permanent weakening of the Mongolian-run Yuan dynasty.
King Gongmin ascends the throne in Goryeo.
The region of Vantaa in Finland is first mentioned.