Between 100 and 3000 Jews were killed in riots in The Erfurt Massacre in the town of Erfurt, Germany.
During the Black Death persecutions, 700 Jews were burned alive in their own homes in Basel, Netherlands.
Pope Clement VI issued two papal bulls stating that Jews were not to blame for the Black Death.
Saturn, Jupiter, and Mars came into alignment. Medieval scholars believed this phenomenon brought forth the Black Death.