Another Mongol tactic was to use catapults to launch corpses of plague victims into besieged cities. The disease-carrying fleas from the bodies would then infest the city, and the plague would spread, allowing the city to be easily captured, although this transmission mechanism was not known at the time. In 1346, the bodies of Mongol warriors of the Golden Horde who had died of plague were thrown over the walls of the Crimean city of Kaffa (now Feodosiya) during the siege of Caffa. It has been speculated that this operation may have been responsible for the advent of the Black Death in Europe. The Black Death is estimated to have killed 30%–60% of Europe's population.
Another Mongol tactic was to use catapults to launch corpses of plague victims into besieged cities The disease-carrying fleas from the bodies would then infest the city and the plague would spread allowing the city to be easily captured although this transmission mechanism was not known at the time In 1346 the bodies of Mongol warriors of the Golden Horde who had died of plague were thrown over the walls of the Crimean city of Kaffa (now Feodosiya) during the siege of Caffa It has been speculated that this operation may have been responsible for the advent of the Black Death in Europe The Black Death is estimated to have killed 30%–60% of Europe's population