Cities buried their dead in mass graves. One-third of Europe would not survive.

The Black Death Reaches France: Europe's Worst Catastrophe

Bubonic plague kills a third of Europe's population

The Black Death killed between one-third and half of Europe's population between 1347 and 1353, fundamentally reshaping medieval society and accelerating the end of feudalism.

By April 1348, the bubonic plague — which had traveled from Central Asia along the Silk Road and arrived in Sicily via Genoese trading ships — had reached southern France. What would follow was the most catastrophic demographic event in European history.

The disease killed with terrifying speed. Victims developed fever, vomiting, and the characteristic black buboes — swollen, blackened lymph nodes — in the groin, armpits, or neck. Death typically followed within a week. In septicemic plague, the most lethal form, death could occur within hours. Medieval medicine, based on humoral theory and astrology, was completely helpless.

Boccaccio, who survived the plague in Florence, described neighbors abandoning dying relatives, graves filled with dozens of bodies stacked like goods in a ship's hold, and the collapse of all social order. Priests refused last rites. Courts of law ceased to function. Fields went unharvested.

When it finally subsided in 1353, between one-third and one-half of Europe's population was dead — perhaps 25 million people. The social consequences were profound. Labor became scarce and expensive. Surviving peasants demanded better wages and conditions, accelerating…

💡 Ring Around the Rosie — the children's rhyme — is often claimed to reference the Black Death, though most historians consider this a 20th-century folk etymology.