This article relies largely or entirely on a single source. (June 2018)
|Ab urbe condita||2072|
|Balinese saka calendar||1240–1241|
|English Regnal year||12 Edw. 2 – 13 Edw. 2|
|Chinese calendar||戊午年 (Earth Horse)|
4015 or 3955
— to —
己未年 (Earth Goat)
4016 or 3956
|- Vikram Samvat||1375–1376|
|- Shaka Samvat||1240–1241|
|- Kali Yuga||4419–4420|
|Japanese calendar||Bunpō 3 / Gen'ō 1|
|Minguo calendar||593 before ROC|
|Thai solar calendar||1861–1862|
1445 or 1064 or 292
— to —
1446 or 1065 or 293
- May 8 – Upon the death of his maternal grandfather, King Haakon V, three-year-old Magnus Eriksson becomes King of Norway.
- July 8 – Three-year-old Magnus Eriksson is elected king of Sweden, thus establishing a union with Norway. His mother Ingeborg of Norway is given a place in the regency, in both Sweden and Norway.
- July 23 – A Knights Hospitaller fleet scores a crushing victory over an Aydinid fleet, off Chios.
- September 20 – Battle of Myton: The forces of Robert the Bruce defeat an English army.
- December 22 – The infante James of Aragon renounces his right to inherit the Crown of Aragon and his marriage to Eleanor of Castile, in order to become a monk.
- Unknown date – a strong earthquake devastates the city of Ani in medieval Armenia, reducing many of its churches to rubble and causing the mass migration of citizens away from the partly-ruined city.
- March 20 – Laurence Hastings, 1st Earl of Pembroke (d. 1348)
- April 26 – King John II of France (d. 1364)
- September 5 – King Peter IV of Aragon (d. 1387)
- date unknown
- James I, Count of La Marche (d. 1362)
- Märta Ulfsdotter, Swedish lady-in-waiting (d. 1371)
- Charles, Duke of Brittany (d. 1364)
- John of Bridlington, English saint (d. 1379)
- Kikuchi Takemitsu, Japanese general (d. 1373)
- Stephen II, Duke of Bavaria (d. 1375)
- Bernabò Visconti, Italian soldier and statesman (d. 1385)
- possible – Murad I, Ottoman Sultan (d. 1389)
- May 8 – King Haakon V of Norway (b. 1270)
- May 19 – Louis, Count of Évreux, son of King Philip III of France (b. 1276)
- August 12 – Rudolf I, Duke of Bavaria (b. 1274)
- August 14 – Waldemar, Margrave of Brandenburg-Stendal (b. c. 1280)
- November 1 – Uguccione della Faggiuola, Italian condottieri (b. c. 1250)
- November 2 – John Sandale, Bishop of Winchester
- November 13 – King Eric VI of Denmark (b. 1274)
- date unknown
- Carlquist, Erik; Hogg, Peter C.; Österberg, Eva (2011). The Chronicle of Duke Erik: A Verse Epic from Medieval Sweden. Nordic Academic Press. p. 257. ISBN 9789185509577.