| Term | Definition |
| Reformation | A time when the power of the Catholic church was challenged and new christian churches were created. |
| usury | The practice of charging interest - considered to be a sin by the Catholic Church. |
| indulgences | A certificate of forgiveness for sin that could be bought. |
| Anglican Church | National Church of England |
| Edict of Nantes | Catholic monarchy granted Huguenots freedom of worship in France |
| Catholic Counter Reformation | Catholic Church mounted a series of reforms and reasserted its authority |
| Society of Jesus | (The Jesuits) was founded to spread Catholic doctrine around the world during the Counter Reformation. |
| Inquisition | Established to reinforce Catholic doctrine; often did so by arresting and torturing heretics. |
| Protestants | People who left the Catholic church and followed one of the new churches created during the Reformation. |
| 30 Years War | War during the Reformation that started over religion but was made more political by Cardinal Richelieu of France. |
| Huguenots | French Protestants |
| What countries became Protestant? | England, N. Germany, Switzerland |
| What countries stayed Catholic? | Italy, Spain, France & S. Germany |
| Switzerland | city that became a Calvinist theocracy |