| Term | Definition |
| Martin Luther | Priest who saw problems in the Roman Catholic Church, wrote and nailed 95 these to the church door. Started the protestant reformation and founded Lutheran church. |
| John Calvin | Believed in predestination and leadership by the elect. Brought theocracy to Geneva |
| Ulrich Zwingli | Swiss reformer who belived God spared him from the plague; preached in Zurich. |
| Henry VIII | The king of England who had six wives and ruled England from 1509-1547; started the Anglican Church because the Church would not allow him to divorce his first wife |
| John Knox | The most celebrated followers of John Calvin and became the chief force in the introduction and establishment of the Presbyterian form of Calvinism in Scotland |
| Simony | Buying or selling of church offices or powers |
| Johann Tetzel | German Dominican preacher remembered for selling indulgences |
| Indulgences | Payment taken in exchange for release from sins committed; "buying your way into prison" |
| 95 Theses | Propositions for debate on the question of indulgences, written by Martin Luther and, according to legend, posted on the door of the castle church in Wittenberg, Ger., on Oct. 31, 1517 |
| Printing Press | A machine that transfers lettering or images by contact with various forms of inked surface onto paper or similar material fed into it in various ways |
| Church of England | The episcopal and liturgical national church of England |
| Presbyterian Church | Any of various Protestant churches governed by presbyters and traditionally Calvinist in doctrine |
| Theocracy | A government ruled by or subject to religious authority |
| Predestination | The doctrine that God has foreordained all things, especially that God has elected certain souls to eternal salvation |
| Diet of Worms | Meeting of the Diet (assembly) of the Holy Roman Empire at Worms, Ger., in 1521, where Martin Luther defended the principles of the Reformation |