1390s

• January 19 – The Treaty of Lyck confirms an alliance between Vytautas and the Teutonic Knights, in the Lithuanian Civil War against Vytautas's cousin, Jogaila.
• April 14 – John VII Palaiologos overthrows his grandfather, John V Palaiologos, as Byzantine Emperor.
• April 19 – Robert III succeeds his father, Robert II, as King of Scotland.
• May 26 – The Treaty of Königsberg is signed in Königsberg, during the Lithuanian Civil War, between Samogitian nobles and representatives of the Teutonic Knights.[1]
• September 11 – Lithuanian Civil War: The coalition of Vytautas and the Teutonic Knights begins a 5-week siege of Vilnius. The Duke of Hereford (the future King Henry IV of England) is among the western European knights serving with the coalition.[2]
• September 17 – John VII Palaiologos seeks refuge with the Ottoman sultan Bayezid I, after John V Palaiologos is restored by his son, Manuel, and the Republic of Venice.
• October 9 – Henry III succeeds his father, John I, as King of Castile and León.

• The Ottomans take Philadelphia, the last Byzantine enclave of any significance in Anatolia.
• Barquq is restored as Mamluk Sultan of Egypt, after overthrowing Sultan Hadji II.
• Nasir ud din Muhammad Shah III overthrows his brother, Abu Bakr Shah, as Sultan of Delhi.
• Manuel III succeeds his father, Alexios III, as Emperor of Trebizond (now north eastern Turkey).
• Sikandar But-shikan succeeds Sikandar Shah, as Sultan of Kashmir.
• Ko Cheng succeeds Che Bong Nga, as King of Champa (now eastern Vietnam).
• Mahmud succeeds Sandaki as Mansa of the Mali Empire, restoring the Keita Dynasty.
• N'Diklam Sare succeeds Sare N'Dyaye, as ruler of the Jolof Empire (now part of Senegal).
• The Kingdom of Kaffa is established in present day Ethiopia (approximate date).
• Templo Mayor, the main temple of the Aztec capital of Tenochtitlan (now Mexico City), is built.
• The Candi Surawana Temple is built in the Majapahit Kingdom (now Indonesia).
• Construction begins on San Petronio Basilica in Bologna.

== {{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<10|a}}}} == {{trim|{{transcluded section|{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}}} {{#section-h::{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}|Events}}}} == {{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<10|a}}}} == {{trim|{{transcluded section|{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}}} {{#section-h::{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}|Events}}}} == {{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<10|a}}}} == {{trim|{{transcluded section|{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}}} {{#section-h::{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}|Events}}}} == {{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<10|a}}}} == {{trim|{{transcluded section|{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}}} {{#section-h::{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}|Events}}}} == {{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<10|a}}}} == {{trim|{{transcluded section|{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}}} {{#section-h::{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}|Events}}}} == {{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<10|a}}}} == {{trim|{{transcluded section|{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}}} {{#section-h::{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}|Events}}}} == {{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<10|a}}}} == {{trim|{{transcluded section|{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}}} {{#section-h::{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}|Events}}}} == {{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<10|a}}}} == {{trim|{{transcluded section|{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}}} {{#section-h::{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}|Events}}}} == {{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<10|a}}}} == {{trim|{{transcluded section|{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}}} {{#section-h::{{dr|y|y|{{{year}}}0|{{{1}}}|n{{#ifexpr:{{{year}}}<100|a}}}}|Events}}}}

• Byzantine Emperor John VIII Palaeologus

• King Duarte of Portugal (d. 1438)
• Gedun Drub, the first Dalai Lama

• John Capgrave, Augustinian theologian

• Prince Henry the Navigator, explorer (d. 1460)
• Ulugh Beg, Timurid astronomer.

• Alfonso V of Aragon

• King Sejong the Great of Joseon, the humane scientist ruler of Korea
• August 10 – Albert II of Habsburg, emperor of the Holy Roman Empire

• Emperor Go-En'yu of Japan, fifth and last of the Northern Ashikaga Pretenders

• Emperor Chōkei of Japan
• Anne of Bohemia

• Thomas of Woodstock (son of King Edward III of England)

• Emperor Sukō, third of the Northern Ashikaga Pretenders.
• Hongwu Emperor of China, founder of the Ming Dynasty.