1378 (MCCCLXXVIII) was a common year starting on Friday of the Julian calendar, the 1378th year of the Common Era (CE) and Anno Domini (AD) designations, the 378th year of the 2nd millennium, the 78th year of the 14th century, and the 9th year of the 1370s decade. As of the start of 1378, the Gregorian calendar was 8 days ahead of the Julian calendar, which was the dominant calendar of the time.

Millennium: 2nd millennium
Centuries: 13th century14th century15th century
Decades: 1340s  1350s  1360s  – 1370s –  1380s  1390s  1400s
Years: 1375 1376 137713781379 1380 1381
1378 in other calendars
Gregorian calendar1378
MCCCLXXVIII
Ab urbe condita2131
Armenian calendar827
ԹՎ ՊԻԷ
Assyrian calendar6128
Balinese saka calendar1299–1300
Bengali calendar785
Berber calendar2328
English Regnal yearRic. 2 – 2 Ric. 2
Buddhist calendar1922
Burmese calendar740
Byzantine calendar6886–6887
Chinese calendar丁巳(Fire Snake)
4074 or 4014
    — to —
戊午年 (Earth Horse)
4075 or 4015
Coptic calendar1094–1095
Discordian calendar2544
Ethiopian calendar1370–1371
Hebrew calendar5138–5139
Hindu calendars
 - Vikram Samvat1434–1435
 - Shaka Samvat1299–1300
 - Kali Yuga4478–4479
Holocene calendar11378
Igbo calendar378–379
Iranian calendar756–757
Islamic calendar779–780
Japanese calendarEiwa 4
(永和4年)
Javanese calendar1291–1292
Julian calendar1378
MCCCLXXVIII
Korean calendar3711
Minguo calendar534 before ROC
民前534年
Nanakshahi calendar−90
Thai solar calendar1920–1921
Tibetan calendar阴火蛇年
(female Fire-Snake)
1504 or 1123 or 351
    — to —
阳土马年
(male Earth-Horse)
1505 or 1124 or 352

Events

change

Undated

change

Births

change

Deaths

change