History of Protestantism History of Protestantism Protestantism originated from work of several theologians starting in the 12th century, although there could have been earlier cases of which there is no surviving evidence. Any prominent dissent was subject to persecution by the Roman Catholic Church, and thus attempts to change anything in the Catholic Church were kept isolated or effectively eradicated up to the 16th century. One of the early Protestant Reformers was John Wycliffe, an English theologian and early proponent of reform in the 14th century. His followers, known as Lollards, spread throughout England but soon were persecuted by both the Catholic Church
John Wycliffe irritated by this encounter, and attacks upon Wycliffe began. The second and third books of his work dealing with civil government carry a sharp polemic. On 22 May 1377 Pope Gregory XI sent five copies of a bull against Wycliffe, dispatching one to the Archbishop of Canterbury, and the others to the Bishop of London, King Edward III, the Chancellor, and the university; among the enclosures were 18 theses of his, which were denounced as erroneous and dangerous to Church and State. Stephen Lahey suggests that Gregory's action against Wycliffe was an attempt to put pressure on King Edward to