Final answer:
The St. Bartholomew's Day Massacre occurred on August 23, 1572, during a period of religious violence in Europe. It was a violent conflict between Huguenots (French Protestants) and Catholics in France.
Step-by-step explanation:
The St. Bartholomew's Day Massacre occurred on August 23, 1572.
During this event, warfare between Huguenots (French Protestants) and Catholics in France led to the assassination of prominent Huguenots who had come to Paris for a royal wedding. The massacre resulted in the deaths of around nine thousand people and marked a period of religious violence during the sixteenth and seventeenth centuries in Europe.
This event highlights the religious turmoil that followed the Protestant Reformation and the struggle for religious dominance during that time.