The Khwarazm Catastrophe

CHAPTER 4 · 1218–1223 · The Mongol Empire, 1206–1294

It did not have to happen — that is the horror of it. In 1218 Genghis, at war with the Jin and wanting the Silk Road open, sends the shah of Khwarazm — master of the grey-tan empire filling the map’s center, from the Aral Sea to the Persian Gulf — a message the sources render almost warmly: I am master of the lands of the rising sun, you of the setting sun; let there be trade between us. A 450-man caravan follows. At the border town of Otrar, governor Inalchuq seizes it as a nest of spies and kills every man but one; Shah Muhammad II, asked for the governor’s head, kills the chief envoy and bu

The turn: Bukhara, February 1220.

This chapter is one scene of an interactive atlas: the map repaints as the dates advance, campaigns draw themselves, and every chapter argues its causes and consequences — then a field exam asks you to prove it on the map.