the Great Western Schismthe Conciliar Periodthe Avignon papacythe East–West DivisionThe simultaneous appointment of three popes in 1378 began the period in the history of the Catholic Church known as what?Elon.io is an online learning platformWe have an entire course teaching World History 1 grammar and vocabulary.Start learning World History 1 nowYour questions are stored by us to improve Elon.ioYou've reached your AI usage limitSign up to increase your limit.