Year 1423 was a common year starting on Friday (link will display the full calendar) of the Julian calendar. Events of 1423 April 27 - Hussite Wars - Battle of Horic: The Taborites decisively beat the Utraquists. July 31 - Hundred Years' War- Battle of Cravant: The French army is defeated at Cravant on the banks of the river Yonne. According to the 1421 theory, Zheng He's fleets return to China. Births May 30 - Georg Purbach, German astronomer and mathematician (d. 1461) June 2 - Ferdinan… (More on 1423)