February 20, 1469: Thomasso de Vio Cajetan, the most learned of the Roman Catholic dignitaries sent to silence Martin Luther in the early years of the Protestant Reformation, is born. He was also one of the cardinals who convinced Pope Clement VII to reject Henry VIII's request to divorce Catherine of Aragon (see issue 34: Luther's Early Years).
February 20, 1895: Abolitionist Frederick Douglass, the first African-American to hold high political office, dies. After escaping to freedom in 1838, he became the most prominent black abolitionist. Critical of the "Christianity of this land," which accepted (or at least tolerated) slavery, he considered himself a devotee of "the pure, peaceable, and impartial Christianity of Christ" (see issue 62: Bound for Canaan).
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, ...