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).
September 24, 787: The Second Council of Nicea begins under Pope Hadrian I. The council condemned iconoclasm. The Roman Catholic Church considers this as the seventh of the 21 ecumenical councils; the Eastern Orthodox churches consider this the last of the ecumenical councils (see issue 54: Eastern Orthodoxy).
September 24, 1757: Jonathan Edwards, perhaps America's most brilliant theologian and a father of American revivalism, becomes president of the College of New Jersey (later Princeton). He served ...