|Ab urbe condita||1967|
|Balinese saka calendar||1135–1136|
|English Regnal year||15 Joh. 1 – 16 Joh. 1|
|Chinese calendar||癸酉年 (Water Rooster)|
3910 or 3850
— to —
甲戌年 (Wood Dog)
3911 or 3851
|- Vikram Samvat||1270–1271|
|- Shaka Samvat||1135–1136|
|- Kali Yuga||4314–4315|
|Japanese calendar||Kenpō 2|
|Minguo calendar||698 before ROC|
|Thai solar calendar||1756–1757|
1340 or 959 or 187
— to —
1341 or 960 or 188
|Wikimedia Commons has media related to 1214.|
- November 1 – Siege of Sinope: The Black Sea port city of Sinope surrenders to the Seljuq Turks.
- The Emperor Xuanzong of Jin China surrenders to the Mongols under Genghis Khan, who have besieged Beijing for a year. He pays a huge ransom and then abandons northern China, heading for Kaifeng.
- In his campaigns in Liaodong, the Mongol general Mukhali commands a newly formed Khitan–Chinese army, and a special corps of 12,000 Chinese auxiliary troops.
- February 15 – John, King of England, lands an invasion force at La Rochelle in France.
- July 27 – Battle of Bouvines: Philip II of France defeats an army of Imperial German, English and Flemish soldiers led by Otto IV, Holy Roman Emperor, in the Kingdom of France, ending the Anglo-French War (1213–14).
- Summer – King Alfonso VIII of Castile besieges Almohad troops in Baeza. The famine experienced in the peninsula is such that neither army is able to fight.
- September 18 – The Treaty of Chinon is signed by John, King of England, and Philip II of France, recognising the Capetian gains from the Angevin Empire.
- October 5 – Upon the death of their father, King Alfonso VIII of Castile, and of their mother, Eleanor (October 31), Berenguela becomes the regent of her young brother, King Henry I.
- December 4 – William the Lion, King of the Scots, dies, having reigned since 1165; he is succeeded by his son, Alexander II (crowned at Scone on December 6), who will reign until his death in 1249.
- The German city of Bielefeld is founded.
- September 14 – Albert Avogadro, Latin Patriarch of Jerusalem (b. 1149)
- October 5 – King Alfonso VIII of Castile (b. 1155)
- October 31 – Eleanor of England, Queen of Castile (b. 1162)
- December 4 – William the Lion, King of the Scots (b. c. 1142)
- October 18 – John de Gray, bishop of Norwich
- date unknown
- Palmer, Alan; Veronica (1992). The Chronology of British History. London: Century Ltd. pp. 77–79. ISBN 0-7126-5616-2.
- Linehan, Peter (1999). "Chapter 21: Castile, Portugal and Navarre". In David Abulafia (ed.). The New Cambridge Medieval History c.1198-c.1300. Cambridge: Cambridge University Press. pp. 668–671. ISBN 0-521-36289-X.