ON THIS DAY ·
Battle of Legnica
9 Apr 1241 — A feint force, sent only to keep Poland off Hungary’s back, destroys Duke Henry’s army of Poles, Germans and military orders. Nine sacks of ears, say the chronicles. Europe’s heavy cavalry has met the composite bow and the feigned retreat.
WW2 is free — every chapter. Try chapters 1–2 of any 2 other atlases (3 with a free account). Opening a new atlas uses one of them. Membership opens all 21 — Join.
The moment in context
The campaign opened at Volga Bulgaria in 1236 and then drove into the Rus lands, where winter became an asset because frozen rivers turned into roads leading to the cities, even as the cold also burdened horses and men. Ryazan and Vladimir fell, while Novgorod escaped when the thaw turned the roads to mud, and Kiev was stormed in December 1240 after refusing to surrender. The destruction was severe, and the surviving principalities entered a tributary relationship with the Golden Horde rather than suffering direct day-to-day occupation.
From Mongol invasion of Europe, chapter 6 of The Mongol Empire, 1206–1294 (1241).
The place: Battle of Legnica — map and full story →
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 →
The atlas that shows it
THE FREE PRINTABLE STUDY GUIDE
Join the Dispatch — a short welcome series, then a letter when a new atlas opens — and the printable study guide for The Mongol Empire is yours now, free.
NO TRACKING · YOUR ADDRESS IS USED FOR THE DISPATCH AND NOTHING ELSE · UNSUBSCRIBE ANYTIME