The document provides information about key figures and events of the Protestant Reformation. It discusses criticisms of the Catholic Church that led Martin Luther to post his 95 theses in 1517, sparking the Reformation. Other reformers mentioned include John Calvin, William Tyndale, and Desiderius Erasmus. It also summarizes how the Reformation spread to England under Henry VIII, and the back-and-forth between Catholic and Protestant rule under the monarchs Mary and Elizabeth.