1378
| Years: 1375 1376 1377 - 1378 - 1379 1380 1381 | |
| Decades: 1340s 1350s 1360s - 1370s - 1380s 1390s 1400s | |
| Centuries: 13th century - 14th century - 15th century | |
Events
- March - John Wyclif tried to gain public favour by laying his theses before parliament, and then made them public in a tract. He appeared before Simon of Sudbury at the episcopal palace at Lambeth to defend himself.
- April 9 - Pope Urban VI (Bartolomeo Prignano, archbishop of Bari) elected. In the Great Schism the papacy moves from Avignon to Rome, ending the Avignon Papacy.
- September 20 - Unhappy with Pope Urban's behavior, a group of cardinals meet at Fondi and elect Clement VII antipope.
- Dmitri Donskoi of Vladimir defeated a small Mongol army.
Births
- December 31 - Pope Callixtus III (d. 1458)
- Lorenzo Ghiberti, Italian sculptor and metal smith (d. 1455)
Deaths
- February 6 - Queen Jeanne de Bourbon, wife of King Charles V of France (b. 1338)
- March 27 - Pope Gregory XI
- May 29 - King Enrique of Castile (b. 1334)
- November 29 - Charles IV, Holy Roman Emperor (b. 1316)
- Galeazzo II Visconti, Lord of Milan