What Happened in 1388
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- Apr 9 Battle of Näfels; Glarius Swiss defeat Habsburg (Austrian) army
- Aug 5 Battle of Otterburn, a border skirmish between the Scottish and the English in Northern England
- Sep 14 Claudius Clavus, Danish cartographer (probably 1st to draw Greenland on a map), born in Salling, Island of Fünen (date of death unknown)
- Sep 29 Thomas of Lancaster, 1st Duke of Clarence, son of Henry IV of England (d. 1421)
- Mar 31 Everhard t'Serclaes, alderman of Brussels, murdered by order of Sweder of Abcoude due to defeat of a land deal, at about 68 (born c. 1320)
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List of Years