Timurid ruler Ulugh Beg builds a great observatory in Samarkand, where one of the most accurate star catalogues of the age is compiled.
Approximate date.
Timur's army defeats the Delhi Sultanate and devastates the city, gravely weakening the sultanate.
Timur becomes ruler of the Chagatai Ulus, making Samarkand his capital and launching conquests across Western and South Asia.
The Venetian merchant Marco Polo travels to China under Kublai Khan; the account of his journey shapes European knowledge of Asia.
The founder of the Mongol Empire dies during the campaign against Western Xia; his heirs continue its expansion.
A kurultai proclaims Temüjin as Genghis Khan, founding the Mongol Empire.
The Bolshevik Red Army fights the White movement and other forces after the October Revolution; the Bolsheviks emerge victorious.