1243

1243 (MCCXLIII) was a common year starting on Thursday of the Julian calendar, the 1243rd year of the Common Era (CE) and Anno Domini (AD) designations, the 243rd year of the 2nd millennium, the 43rd year of the 13th century, and the 4th year of the 1240s decade. As of the start of 1243, the Gregorian calendar was 7 days ahead of the Julian calendar, which was the dominant calendar of the time.

Millennium:	2nd millennium
Centuries:	12th century – 13th century – 14th century
Decades:	1210s  1220s  1230s  – 1240s –  1250s  1260s  1270s
Years:	1240 1241 1242 – 1243 – 1244 1245 1246

1243 in other calendars

Gregorian calendar	1243 MCCXLIII
Ab urbe condita	1996
Armenian calendar	692 ԹՎ ՈՂԲ
Assyrian calendar	5993
Balinese saka calendar	1164–1165
Bengali calendar	650
Berber calendar	2193
English Regnal year	27 Hen. 3 – 28 Hen. 3
Buddhist calendar	1787
Burmese calendar	605
Byzantine calendar	6751–6752
Chinese calendar	壬寅年 (Water Tiger) 3939 or 3879     — to — 癸卯年 (Water Rabbit) 3940 or 3880
Coptic calendar	959–960
Discordian calendar	2409
Ethiopian calendar	1235–1236
Hebrew calendar	5003–5004
Hindu calendars
- Vikram Samvat	1299–1300
- Shaka Samvat	1164–1165
- Kali Yuga	4343–4344
Holocene calendar	11243
Igbo calendar	243–244
Iranian calendar	621–622
Islamic calendar	640–641
Japanese calendar	Ninji 4 / Kangen 1 (寛元元年)
Javanese calendar	1152–1153
Julian calendar	1243 MCCXLIII
Korean calendar	3576
Minguo calendar	669 before ROC 民前669年
Nanakshahi calendar	−225
Thai solar calendar	1785–1786
Tibetan calendar	ཆུ་ཕོ་སྟག་ལོ་ (male Water-Tiger) 1369 or 988 or 216     — to — ཆུ་མོ་ཡོས་ལོ་ (female Water-Hare) 1370 or 989 or 217

Events

• Innocent IV was elected pope.
• Castile captures the city of Murcia from the Moors.
• City of Brno founded
• Battle of Köse Dag