Peasants led by Wat Tyler rise against the poll tax and serfdom, marching on London before being suppressed.
Date given in the Julian calendar.
Rival claimants to the papacy in Rome and Avignon divide the Catholic Church until the Council of Constance ends the schism.
Ottoman forces fight a Serbian-led coalition; both Sultan Murad I and Prince Lazar are killed, and the battle becomes central to Serbian national memory.
The allied forces of Poland and Lithuania defeat the Teutonic Knights in one of the largest battles of medieval Europe.
Plague arrives at Messina, Sicily, on merchant ships and spreads across Europe, killing roughly a third of its population.
The Czech church reformer Jan Hus is condemned as a heretic by the Council of Constance and burned at the stake, sparking the Hussite movement.
Henry V's English army, largely archers, defeats a larger French army during the Hundred Years' War.