January 21, 1525: Conrad Grebel (Ulrich Zwingli's former protege) rebaptizes George Blaurock, a former monk, in a secret, illegal meeting of six men in Zurich. This meeting is now considered the birth of the Anabaptist movement (see issue 5: Anabaptists).
January 21, 1549: In the first of four Acts of Uniformity, the English Parliament requires all Anglican public services to exclusively use of The Book of Common Prayer.
January 21, 1621: Pilgrims leave the Mayflower and gather on shore at Plymouth, Massachusetts, for their first religious service in America (see issue 41: The American Puritans).
May 26, 1521: The Edict of Worms formally condemns Martin Luther's teachings and he is put under the ban of the Holy Roman Emperor. Those who fear for his life then kidnap Luther and hide him in Frederick’s Wartburg castle (see issue 34: Luther's Early Years).
May 26, 1232: Pope Gregory IX sends the first Inquisition team to Aragon (in present-day Spain).
May 26, 1647: Massachusetts enacts a law forbidding any Jesuit or Roman Catholic priest from entering Puritan jurisdictions. Second-time ...