1346—Mongols are besieging the Genoese trading post of Caffa in the Crimea (Ukraine). Decimated by the mysterious disease that has pursued them from Central Asia, they give up hope of taking the town. However, before they withdraw, they hurl the bodies of several dead soldiers over the walls using giant catapults. Some of the Genoese defenders take to galleys to flee the epidemic that has stricken Caffa. They carry the disease to all the ports they put into. In a few months, the Black Death spreads throughout Europe before reaching North Africa and Asia... In around two years, 25 million people are cut down by the most brutal demographic catastrophe humankind has ever experienced: one-quarter of Europe’s population. The Black Death leaves a deep mark on the society of the period, which will introduce profound political, religious, artistic, and social changes.