The siege of Gurganj
The Mongols drown Khwarazm's capital in the Oxus
The Khwarazmian capital held out against the Mongols for months, one of the longest sieges of the war, partly because Genghis Khan's sons Jochi and Chagatai quarrelled over the siege. After taking it in spring 1221 the Mongols broke the dams and let the Oxus flood the city.
Wikipedia (English) · 13th century
Meanwhile around the world (±25 years)
Europe
- 1202 Fibonacci's Liber Abaci — 19 years earlier
- 1204 Sack of Constantinople — 17 years earlier
- 1212 Battle of Las Navas de Tolosa — 9 years earlier
- 1215 Magna Carta — 6 years earlier
- 1231 Papal Inquisition established — 10 years later
Eastern Europe & Russia
- 1223 Battle of the Kalka River — 2 years later
- 1237–1240 Mongol invasion of Rus' — 16 years later
- 1240 Batu Khan takes Kiev — 19 years later
- c. 1242 The Golden Horde is founded — 21 years later
Alive at the time
- Genghis Khan (aged 59)
- Kublai Khan (aged 6)
- Alexander Nevsky (aged 0)
- Philip II Augustus (aged 56)
- Francis of Assisi (aged 39)
- Frederick II (aged 27)
- Rumi (aged 14)
- Saint Louis (Louis IX) (aged 7)
- Sundiata Keita (aged 4)
- Rudolf I (aged 3)