1389: Gyeongsang commander Bak Wi attacks Tsushima with 100 ships, burning nearly all of 300 Japanese ships and houses, and brings back over 100 captive people (Goryeosa Jeolyo (Essentials of Goryeo History) 권34 恭讓王 元年)
Eastern Europe & Russia (1)
Grand Prince Dmitri Ivanovich dies in Moscow on 9 May. (Novgorod First Chronicle litopys 기사 1389년)