January 31– The 24th English Parliament of King Richard II is dissolved after having met since September 17. The King gives royal assent to numerous laws, including the Treason Act 1397, providing for new definitions of treason (compassing the death of the King, making war against the King within the realm, attempting to repeal any judgments made by parliament convicting "certain traitors", or attempting to repeal the Treason Act itself.
January– The Dao Ganmeng rebellion in the Chinese vassal state of Möng Mao,started in December by Dao Genmeng, is brought to an end in what is now Myanmar two months after Dao Ganmeng's takeover. With the intervention of the Chinese Empire, led by the Ming dynasty Emperor Zhu Yuanzhang, the deposed ruler Si Lunfa is restored to leadership.
February 20– The vicar John de Aston of Colston Bassett is released from incarceration at Fleet Prison in England by order of King Richard II upon the payment of mainprise or bail.
April 5– The Teutonic Knights conquer the island of Gotland, near Sweden, which has previously been run by the piratical Victual Brothers. In the agreement of surrender, the city of Visby and the entire island are ceded to Johan of Mecklenburg, and merchants from the Hanseatic League are allowed free trade. In addition, the Knights receive the opportunity to clear all known pirates and other enemies from Gotland.
May 22– The Assembly of Paris begins, as Catholic clergy and bishops discuss whether withdraw obedience from the rival popes, Boniface IX in Rome and the antipopeBenedict XIII at Avignon withdrawing the right of either of the popes to bestow benefices to officials in France in return for past or future services.
July 22– The first ships to complete passage on the 60 miles (97km) long Stecknitz Canal in Germany arrive at Lübeck, with 30 barges carrying salt from Lüneburg. The canal, completed after seven years between the rivers Elbe and Trave, is one of the earliest navigable summit level canals in the world.
September 2– The Bona crusaders from Spain sack the Algerian village of Tedelis in the Kingdom of Tlemcen, killing around 1,000 people, before abandoning the African crusade and returning to defend the siege of Avignon at France.
October 14– King Taejo of Joseon abdicates the throne of the Joseon dynasty in modern-day Korea, following the murder of his heir Yi Bangsuk, during a coup by Yi's older half-brother, Yi Bang-won, in The First Strife Of Princes. Taejo's eldest son Jeongjong succeeds to the throne.
December 17–Timur defeats the last ruler of the Delhi Sultanate, which has been weakened after four years of civil war. Following his victory, Timur's Islamic troops sack the city of Delhi, and proceed to massacre hundreds of thousands of the state's Hindu inhabitants.
↑Najemy, John M. (2006). A History of Florence 1200–1575. Oxford: Blackwell Publishing. p.193. ISBN978-1-4051-1954-2.Najemy 2006, p. 193 Kohl 1998, pp. 313–314
↑Langlois, John D (1988). "The Hung-wu reign, 1368–1398". In Mote, Frederick W.; Twitchett, Denis C. (eds.). The Cambridge History of China Volume 7: The Ming Dynasty, 1368–1644, Part 1. Cambridge: Cambridge University Press. p.181. ISBN0521243327.
↑Shukurov, Rustam (June 1994). "Between Peace and Hostility: Trebizond and the Pontic Turkish Periphery in the Fourteenth Century". Mediterranean Historical Review. 9. Routledge: 27–37. doi:10.1080/09518969408569663.
↑Luke, Harry (1975). "The Kingdom of Cyprus". In Setton, Kenneth Meyer (ed.). A History of the Crusades: The fourteenth and fifteenth centuries. Vol.III. University of Wisconsin Press. pp.370–371.