MAPS OF HISTORY · ON THIS DAY · April 11 · 1241
ON THIS DAY · 11 APRIL 1241
Mohi
11 Apr 1241 — Two days after Legnica, six hundred kilometers away, the main army destroys King Béla IV’s host at the Sajó bridge — stone-throwers and fire-arrows covering a night river crossing. Two victories in one week, coordinated across a continent: no European staff could have done it.
THE MOMENT IN CONTEXT
This is the campaign Subötai filed away in 1224, executed with the empire’s full weight: a kurultai assigns the “western lands” to Batu, Jochi’s son, with perhaps 120,000–150,000 riders and the old marshal as its brain. Volga Bulgaria — which had beaten the raiders once — is erased in a season (1236). Then the stroke of genius that looks like madness: the Rus are invaded in December. Winter, the Rus certainty that made war impossible, is Subötai’s weapon — frozen rivers become cavalry highways aimed at every city’s waterfront, and the princes cannot combine (would not have anyway; see Chapter 5). Watch the arrows: Ryazan falls in five days at midwinter, Vladimir in February, fourteen towns in three months; little Kozelsk buys seven weeks with everyone’s lives. Novgorod alone is spared by the thaw — mud, the one enemy the horses respect. In 1240 the south takes its turn, and Kiev, the golden-domed mother of Rus cities, refuses surrender and is stormed on 6 December; a papal envoy passing six years later counts two hundred houses standing amid the bones. The hatched belt on your map is what remains: the Rus principalities become tan tributaries — the “Tatar yoke” that will shape Russian history for 240 years.
From Chapter 6 — The Storm on the West of The Mongol Empire, 1206–1294 (1241).
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TEACH THIS IN 5 MINUTES
- Why it happened — An empire’s full attention, this time. 1223 was 20,000 men moonlighting; 1236 was the state: a kurultai decision, princes of all four family lines under Batu, and Subötai applying…
- The turn — Legnica and Mohi, 9–11 April 1241. One week broke two kingdoms and revealed the capability gap in full: continent-scale coordination, columns keeping schedule across six hundred…
- What it changed — The yoke: Rus enters the Horde’s world. The principalities keep their princes, faiths and wars — and pay tribute, take census, and travel to Sarai for patents of rule, for 240 years.…
Then ask the room: Did the death of Ögedei save Europe? Argue it both ways with the evidence on this map. The argued answer is on the chapter page →
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