aug 24, 1572 - St. Bartholomew's Day Massacre

Description:

This was when all the Calvinist leaders came to Paris for Henry of Navarre's wedding and sometime during the morning all the Catholic guards came into their room and killed them. This lead to citizens slaughtering each other in the streets because they thought it was ok because their ruler had allowed it. So it led to mass murder of over 70,000 people in France.