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|1370 by topic|
|Political entities - State leaders - Religious leaders|
|Birth and death categories|
|Births - Deaths|
|Establishments and disestablishments categories|
|Establishments - Disestablishments|
|Art and literature|
|1370 in poetry|
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- May 24 – The Treaty of Stralsund ends the war between Denmark and the Hanseatic League.
- October 20 – Philip of Anjou, Titular Emperor of Constantinople, marries Elisabeth of Slavonia (daughter of Stephen, duke of Transylvania and Slavonia), and Margareta of Bavaria.
- December 20 – Pope Gregory XI succeeds Pope Urban V, as the 201st pope.
- The steel crossbow is first used as a weapon of war.
- Xian City (Chang'an) is fortified against invasion.
- Timur completes his conquest of Central Asia and parts of Persia, establishing the Timurid Empire.
- Trần Nghệ Tông deposes Dương Nhật Lễ as emperor of Đại Việt, now Vietnam.
- For the second time since 1368, the Grand Duchy of Moscow attacks Tver, which again counter-attacks, with the aid of the Grand Duchy of Lithuania and the Blue Horde.
- Casimir III of Poland is succeeded jointly by his sister, Elisabeth of Kujavia, and her son, Louis I of Hungary, beginning the rule of Poland by the Capet-Anjou family.
- The Siege of Limoges is launched.
- April 11 – Frederick I, Elector of Saxony (d. 1428)
- July 23 – Pier Paolo Vergerio the Elder, Italian humanist (d. 1444 or 1445)
- date unknown
- May 31 – St. Vitalis of Assisi (b. 1295)
- November 5 – Casimir III of Poland (b. 1310)
- December 19 – Pope Urban V (b. 1310)
- date unknown
- Probable date