1380

1380 in various calendars
Gregorian calendar	1380; MCCCLXXX
Ab urbe condita	2133
Armenian calendar	829; ԹՎ ՊԻԹ
Assyrian calendar	6130
Balinese saka calendar	1301–1302
Bengali calendar	787
Berber calendar	2330
English Regnal year	3 Ric. 2 – 4 Ric. 2
Buddhist calendar	1924
Burmese calendar	742
Byzantine calendar	6888–6889
Chinese calendar	己未年 (Earth Goat); 4077 or 3870; — to —; 庚申年 (Metal Monkey); 4078 or 3871
Coptic calendar	1096–1097
Discordian calendar	2546
Ethiopian calendar	1372–1373
Hebrew calendar	5140–5141
Hindu calendars
- Vikram Samvat	1436–1437
- Shaka Samvat	1301–1302
- Kali Yuga	4480–4481
Holocene calendar	11380
Igbo calendar	380–381
Iranian calendar	758–759
Islamic calendar	781–782
Japanese calendar	Kōryaku 2; (康暦２年)
Javanese calendar	1293–1294
Julian calendar	1380; MCCCLXXX
Korean calendar	3713
Minguo calendar	532 before ROC; 民前532年
Nanakshahi calendar	−88
Thai solar calendar	1922–1923
Tibetan calendar	阴土羊年; (female Earth-Goat); 1506 or 1125 or 353; — to —; 阳金猴年; (male Iron-Monkey); 1507 or 1126 or 354

Millennium:	2nd millennium
Centuries:	13th century; 14th century ; 15th century;
Decades:	1360s; 1370s; 1380s ; 1390s; 1400s;
Years:	1377; 1378; 1379; 1380 ; 1381; 1382; 1383;

Year 1380 (MCCCLXXX) was a leap year starting on Sunday (link will display the full calendar) of the Julian calendar.

Events

February – Olaf II of Denmark becomes Olaf IV of Norway, with his mother Margaret as regent. Iceland and the Faroe Islands, as parts of Norway, pass under the Danish crown.
May 31 – Grand Duke of Lithuania Jogaila signs the secret Treaty of Dovydiškės with the Teutonic Knights. This sparks a civil war with his uncle Kęstutis.
June 21 – Battle of Chioggia: the Venetian fleet defeats Genoeses.
July 27 – Henry Bolingbroke marries Mary de Bohun at Arundel Castle.
September 8 – Battle of Kulikovo: Russian forces under Grand Prince Dmitry Donskoy of Moscow resist a large invasion by the Blue Horde, Lithuania and Ryazan, stopping their advance at the Battle of Kulikovo.
September 16 – Charles V of France is succeeded by his twelve-year-old son, Charles VI.
October 2 – Caterina Visconti marries her first cousin, Gian Galeazzo Visconti, later Duke of Milan, at the Church of San Giovanni in Conca.
November 3 - Charles VI of France, who succeeded his father, Charles V of France, in September is crowned.

Sir William Walworth, a member of the Fishmongers Guild, becomes Lord Mayor of London for the second time.
Khan Tokhtamysh of the White Horde dethrones Khan Mamai of the Blue Horde. The two hordes unite to form the Golden Horde.
Karim Al-Makhdum arrives in Jolo and builds a Mosque.
The Hongwu Emperor purges the chancellor of China, Hu Weiyong, and abolishes that office as he imposes direct imperial rule over the six ministries of central government for the Ming Empire.
The last islands of Polynesia are discovered and inhabited.
The Companhia das Naus is founded by King Ferdinand I of Portugal.
The imposter Paul Palaiologos Tagaris, having been appointed Latin Patriarch of Constantinople by Pope Urban VI, takes up residence in his see at Chalcis.

February 11 – Gian Francesco Poggio Bracciolini, Italian humanist (d. 1459)
September 8 – Saint Bernardino of Siena, Italian Franciscan missionary (d. 1444)
November 27 – King Ferdinand I of Aragon (d. 1416)
date unknown
- Giovanni Berardi, Archbishop of Tarentum (d. 1449)
- Nguyễn Trãi, Confucian scholar (d. 1442)
- Jan Želivský, Hussite priest (d. 1422)
probable
- Jamshīd al-Kāshī, Persian astronomer and mathematician (d. 1429)
- King Lukeni lua Nimi of the Kingdom of Kongo (d. 1420)
- Thomas à Kempis, German monk and writer (d. 1471)

1380 by topic
Leaders
Political entities State leaders Religious leaders
Birth and death categories
Births – Deaths
Establishments and disestablishments categories
Establishments – Disestablishments
Art and literature
1380 in poetry
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