1251

This article is about the year 1251. For the character encoding (codepage), see Windows-1251.

Millennium:	2nd millennium
Centuries:	12th century – 13th century – 14th century
Decades:	1220s  1230s  1240s  – 1250s –  1260s  1270s  1280s
Years:	1248 1249 1250 – 1251 – 1252 1253 1254

1251 by topic

Politics

State leaders – Sovereign states

Birth and death categories

Births – Deaths

Establishments and disestablishments categories

Establishments – Disestablishments

Art and literature

1251 in poetry

1251 in other calendars

Gregorian calendar	1251 MCCLI
Ab urbe condita	2004
Armenian calendar	700 ԹՎ Չ
Assyrian calendar	6001
Bengali calendar	658
Berber calendar	2201
English Regnal year	35 Hen. 3 – 36 Hen. 3
Buddhist calendar	1795
Burmese calendar	613
Byzantine calendar	6759–6760
Chinese calendar	庚戌年 (Metal Dog) 3947 or 3887     — to — 辛亥年 (Metal Pig) 3948 or 3888
Coptic calendar	967–968
Discordian calendar	2417
Ethiopian calendar	1243–1244
Hebrew calendar	5011–5012
Hindu calendars
- Vikram Samvat	1307–1308
- Shaka Samvat	1173–1174
- Kali Yuga	4352–4353
Holocene calendar	11251
Igbo calendar	251–252
Iranian calendar	629–630
Islamic calendar	648–649
Japanese calendar	Kenchō 3 (建長３年)
Julian calendar	1251 MCCLI
Korean calendar	3584
Minguo calendar	661 before ROC 民前661年
Thai solar calendar	1793–1794

Year 1251 (MCCLI) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar.

Events

By place

Europe

• April – The first Shepherds' Crusade, a domestic French uprising in response to events in Egypt during the Seventh Crusade, occurs.
• December 26 – King Alexander III of Scotland marries Margaret, daughter of King Henry III of England, precipitating a power struggle between the two monarchs.
• Andrew de Longjumeau, dispatched two years earlier by King Louis IX of France as an ambassador to the Mongols, meets the king in Palestine, with reports from the Mongols and Tartary; his mission is considered a failure.
• Mindaugas of Lithuania is baptized, in prelude to his crowning as King of Lithuania in 1253.
• Alexander Nevsky signs the first peace treaty between Kievan Rus' and Norway.
• King Conrad IV of Germany invades Italy, but fails to subdue the supporters of Pope Innocent IV.
• The German city of Berlin, founded some 50 years earlier, receives its city charter.
• Ottokar II of Bohemia, later to become King of Bohemia, is elected Duke of Austria.
• The earliest known manuscript of The Proverbs of Alfred, a collection of sayings of England's Alfred the Great, is written.

Asia

• Möngke Khan is elected as the fourth great Khan of the Mongol Empire.
• The carving of the Tripitaka Koreana, a collection of Buddhist scriptures recorded on some 81,000 wooden blocks, is completed.

Births

• September 2 – Francis of Fabriano, Italian writer (d. 1322)
• Hōjō Tokimune, 8th regent of the Kamakura shogunate (d. 1284)

Deaths

• January – Bohemund V of Antioch
• February 9 Matthias II, Duke of Lorraine
• March 31 – William of Modena, Bishop of Modena
• June 6 – William III of Dampierre, Count of Flanders
• July 6 – Peter I, Duke of Brittany (b. 1190)
• September 2 – Viola, Duchess of Opole
• date unknown
  • Eljigidei, Mongol commander of Persia
  • Isobel of Huntingdon (b. 1199)
  • Oghul Qaimish, the 3rd regent of the Mongol Empire, after her husband died.