1210s

Asia

• Emperor Juntoku succeeds Emperor Tsuchimikado, on the throne of Japan.
• Jochi, eldest son of Genghis Khan, leads a Mongol campaign against the Kyrgyz.

Europe

• May – The Second Parliament of Ravennika is held at Ravennika in Central Greece, resulting in a concordat between the princes of Frankish Greece and the Roman Catholic clergy.
• July 18 – Battle of Gestilren: Former king Sverker II of Sweden is defeated and killed, by the reigning king Erik X.
• November 18 – Otto IV, Holy Roman Emperor is excommunicated by Pope Innocent III, for invading southern Italy in defiance of the Concordat of Worms.
• November 21 – King Eric X of Sweden is crowned, which is the first known coronation of a Swedish king. Shortly thereafter, he marries the Danish princess Richeza, in order to strengthen his relationship to the Danish king Valdemar the Conqueror. Valdemar used to support King Sverker II, but through the marriage, Valdemar makes peace with his former enemy, Eric.
• King John I of England raises £100,000 from church property as an extraordinary fiscal levy; the operation is described as an “inestimable and incomparable exaction” by contemporary sources.^[1]
• Livonian Crusade – Battle of Ümera: Estonian forces defeat the Livonian Brothers of the Sword.
• The citadel of the Acrocorinth in Greece surrenders to the Crusaders, after a five-year siege.

Arts and culture

• Gottfried von Strassburg writes his epic poem Tristan (approximate date).
• 1210–1211 – Shazi creates the Pen Box, from Persia (Iran) or Afghanistan (it is now kept at Freer Gallery of Art, Smithsonian Institution, Washington, D.C.).

Nature

• September 24 – Venus occults Jupiter (the last such occurrence until 1570).

Religion

• Pope Innocent III gives oral permission to Francis of Assisi, to begin the Order of Friars Minor.
• The church of St Helen's Bishopsgate in the City of London is founded, as a priory of Benedictine nuns.

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