The Huguenots were French Protestants during the 16th and 17th centuries. They faced severe persecution until King Henry IV issued the Edict of Nantes granting them rights and protections.
Calvinism: This is the Protestant theological system which forms part of their belief system. Think of it as their study guide or manual for understanding their faith.
St. Bartholomew's Day Massacre: This was an event where thousands of Huguenots were killed by Catholics. Picture it as a disastrous storm that suddenly hits causing massive damage.
Revocation of the Edict of Nantes: This occurred when Louis XIV cancelled the edict, leading to renewed persecution against Huguenots. It's like taking away that protective umbrella on a rainy day leaving you exposed to get wet.