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1392 (MCCCXCII) was a leap year starting on Monday of the Julian calendar, the 1392nd year of the Common Era (CE) and Anno Domini (AD) designations, the 392nd year of the 2nd millennium, the 92nd year of the 14th century, and the 3rd year of the 1390s decade. As of the start of 1392, the Gregorian calendar was 8 days ahead of the Julian calendar, which was the dominant calendar of the time.

• December 16 – Emperor Go-Kameyama of Japan abdicates in favor of rival claimant Go-Komatsu, in order to end the nanboku-cho period of conflict between the Northern and Southern imperial courts.
• Goryeo Revolution 1388-1392: In present-day Korea, rebel leader General Yi Seonggye overthrows King Gongyang and crowns himself King Taejo, ending the Goryeo Dynasty and establishing the Joseon Dynasty. King Gongyang is exiled and later secretly murdered.
• King Jogaila of Poland and Lithuania appoints his cousin Vytautas the Great as regent of Lithuania in return for Vytautas giving up his claim to the Lithuanian throne. Vytautas replaces Jogaila's unpopular brother Skirgaila as regent.
• King Charles VI of France, later known as Charles the Mad, begins experiencing bouts of psychosis which will continue throughout his life.
• Muhammed VII succeeds Yusuf II as Nasrid Sultan of Granada (now southern Spain).
• Franciscan friar James of Jülich is boiled alive for impersonating a bishop and ordaining his own priests.
• Queen Mary of Sicily defeats an army of rebel barons.
• William Le Scrop succeeds William II de Montacute as King of the Isle of Man.
• Seoan mac Pilib succeeds Tomas mor mac Mathghamhna as King of East Breifne in present-day north-central Ireland.
• The city of Afyonkarahisar (now in western Turkey) is conquered by Sultan Beyazid I of the Ottoman Empire.
• Louis de Valois is created the 1st Duke of Orléans, the second time this title was created.
• Erfurt University is founded in Erfurt, central Germany.
• Penistone Grammar School, which was one of the first comprehensive schools in England, is founded near Barnsley, England.

• February 3 – Henry Percy, 2nd Earl of Northumberland (died 1455)
• Alain Chartier, French poet and political writer (approximate date; died c. 1430)
• Flavio Biondo, Italian humanist and historian (died 1463)
• John de Mowbray, 2nd Duke of Norfolk (died 1432)
• Filippo Maria Visconti, Duke of Milan (died 1447)

• Abbot Methodius of Peshnosha, Eastern Orthodox saint
• Jeong Mong-ju, Goryeo diplomat and poet (born 1337)