Battle of Blue Waters
Lithuania wins Kiev and the Dnieper lands from the Horde

Grand Duke Algirdas of Lithuania defeated the armies of three Horde beys. Kiev and vast southern lands passed to Lithuania. From then on, the former Kievan Rus' was divided between two centres, Moscow and Vilnius.
Wikipedia (Russian) · Wikipedia (English) · 14th century
Meanwhile around the world (±25 years)
Europe
- 1337–1453 Hundred Years' War — 25 years earlier
- 1347–1351 Black Death — 15 years earlier
- 1385 Union of Krewo — 23 years later
Asia
- 1368 Founding of the Ming dynasty — 6 years later
- 1370 Timur makes Samarkand his capital — 8 years later
- 1377 Jikji, printed with movable metal type — 15 years later
Alive at the time
- Timur (aged 26)
- Orhan (aged 81)
- Ibn Battuta (aged 58)
- Edward III (aged 50)
- Sergius of Radonezh (aged 48)
- Charles IV (aged 46)
- Murad I (aged 36)
- Ibn Khaldun (aged 30)
- Dmitry Donskoy (aged 12)
- Ashikaga Yoshimitsu (aged 4)