In the early 16th Century, the Christian church was in turmoil. Despite growing to be the dominant force in Europe, it was rife with numerous theological errors. The doctrine of indulgence sales was particularly erroneous and proved to be the main catalyst for Martin Luther to present the 95 Theses. The main propagator of indulgence sales was one of the most infamous villains in the history of the church. He was a Dominican friar and church charlatan known as Johann Tetzel.