- 1346- An army was infected by the plague, they catapulted their infected across enemy lines.
- May 1347- Both sides were decimated, the survivors escaped by sea one ship going to Constantinople which eventually lost 90% of its population.
- October 1347- Another ship docked in Sicily the plague killed half of the population then moved to Messina and then mainland Italy.
- November 1347- The plague spread to Marseille France and then spread throughout the entire country.
- January 1348- The plague killed 60% of the Venetian population and spread through Europe from Genoa.
- April 1348- Multiple Jewish communities are massacred, the first one being in Provence where 40 Jews were killed.
- June 1348- The plague entered England people trying to escape spread it further inland.
- Summer 1348- Jews were blamed making them targets they migrated to safe havens in Poland and Lithuania.
- October 1348- The plague reached London people left for the countryside to find food.
- February 1349- 2,000 Jews were slaughtered on Valentine's day in Strasbourg.
- April 1349- The plague hit Wales and eventually killed 100,000 people there.
- July 1349- The plague enters Denmark and Sweden killing 2 of the king's brothers.
- March 1350- Scotland trying to attack enemies caught the plague and spread it to their country.
- 1351- the plague begins to die down but Europe had lost about 50% of its population.
- 1353- the plague was behind them leading them to the Renaissance.
The plague killed 50 million people in only a couple of years. It spread very quickly throughout many different countries. It spread so quickly because infected people trying to escape had spread it even more. It didn't help at the beginning of the plague that armies would intentionally spread it to others. It originated from fleas on rats' backs on ships. That was only half of how it spread so quickly. It started to die down when people were focused on quarinining themselves trying to slow the spread of the plague.