"The Canterbury Tales" was written during a turbulent time in English history. The Catholic Church was in the midst of the Western Schism and, although it was still the only Christian authority in Western Europe, it was the subject of heavy controversy. Lollardy, an early English religious movement led by John Wycliffe, is mentioned in the "Tales", which also mention a specific incident involving pardoners (sellers of indulgences, which were believed to relieve the temporal punishment due for sins that were already forgiven in the Sacrament of Confession) who nefariously claimed to be collecting for St. Mary Rouncesval hospital in England. "The Canterbury Tales" is among the first English literary works to mention paper, a relatively new invention that allowed dissemination of the written word never before seen in England. Political clashes, such as the 1381 Peasants' Revolt and clashes ending in the deposing of King Richard II, further reveal the complex turmoil surrounding Chaucer in the time of the "Tales"' writing. Many of his close friends were executed and he himself moved to Kent to get away from events in London.