Protestantism | Definition, Beliefs, History, & Facts ...
www.britannica.com › topic › ProtestantismProtestantism, Christian religious movement that began in northern Europe in the early 16th century as a reaction to medieval Roman Catholic doctrines and practices. Along with Roman Catholicism and Eastern Orthodoxy, Protestantism became one of three major forces in Christianity. After a series of European religious wars in the 16th and 17th centuries, and especially in the 19th century, it ...