1237

1237 (MCCXXXVII) was a common year starting on Thursday of the Julian calendar, the 1237th year of the Common Era (CE) and Anno Domini (AD) designations, the 237th year of the 2nd millennium, the 37th year of the 13th century, and the 8th year of the 1230s decade. As of the start of 1237, 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:	1200s  1210s  1220s  – 1230s –  1240s  1250s  1260s
Years:	1234 1235 1236 – 1237 – 1238 1239 1240

1237 in other calendars

Gregorian calendar	1237 MCCXXXVII
Ab urbe condita	1990
Armenian calendar	686 ԹՎ ՈՁԶ
Assyrian calendar	5987
Balinese saka calendar	1158–1159
Bengali calendar	644
Berber calendar	2187
English Regnal year	21 Hen. 3 – 22 Hen. 3
Buddhist calendar	1781
Burmese calendar	599
Byzantine calendar	6745–6746
Chinese calendar	丙申年 (Fire Monkey) 3933 or 3873     — to — 丁酉年 (Fire Rooster) 3934 or 3874
Coptic calendar	953–954
Discordian calendar	2403
Ethiopian calendar	1229–1230
Hebrew calendar	4997–4998
Hindu calendars
- Vikram Samvat	1293–1294
- Shaka Samvat	1158–1159
- Kali Yuga	4337–4338
Holocene calendar	11237
Igbo calendar	237–238
Iranian calendar	615–616
Islamic calendar	634–635
Japanese calendar	Katei 3 (嘉禎３年)
Javanese calendar	1146–1147
Julian calendar	1237 MCCXXXVII
Korean calendar	3570
Minguo calendar	675 before ROC 民前675年
Nanakshahi calendar	−231
Thai solar calendar	1779–1780
Tibetan calendar	阳火猴年 (male Fire-Monkey) 1363 or 982 or 210     — to — 阴火鸡年 (female Fire-Rooster) 1364 or 983 or 211

Events

• Thomas II of Savoy becomes count of Flanders.
• Elbląg, Poland is founded.
• Representatives of all 4 khanates lead 150000 Mongol, Turkish and Persian troops into Europe.
• The Mongols invade Russia.
• Gualdo Tadino, Italy, is destroyed by fire.
• The County of Artois is founded in France.
• Baldwin II becomes Latin Emperor of Constantinople.
• Conrad IV of Germany becomes King of Germany.
• The Livonian Brothers of the Sword unite with the Teutonic Knights.
• Frederick II, Holy Roman Emperor defeats Lombard League at Battle of Cortenuova
• A major fire destroys some 30,000 dwellings in the Chinese capital city of Hangzhou.

Births

• Bohemond VI of Antioch, ruler of the principality of Antioch

Deaths

• April 15 – Richard Poore, English ecclesiastic
• June 6 – John de Scotia, 9th Earl of Huntingdon
• John of Brienne, king of Jerusalem and Latin Emperor of Constantinople (born c. 1148)
• Jordanus Nemorarius, German scientist
• Pons de Capduelh, French troubadour
• September 23 – Snorri Sturluson, Icelandic historian, poet and politician (born c.1178)

Monarchs/Presidents

• Aragon – James I King of Aragon and count of Barcelona (reigned from 1213 to 1276)
• Castile – Ferdinand III, the Saint King of Castile and León (reigned from 1217 to 1252)
• Joan, wife of Llwelyn the Great