October 31, 1517: Martin Luther posts his 95 Theses in Wittenberg (see issue 34: Luther's Early Years).
October 31, 1825: George Muller, who founded orphanages that would house more than 10,000 orphans by his death in 1898, converts to Christianity at a Moravian mission.
October 31, 1992: Pope John Paul II formally admits the Roman Catholic Church's error in condemning Galileo Galilei in 1633 for believing the sun, not the earth, was the center of the universe (see issue 76: Christian Face of the Scientific Revolution).
February 28, 1551: German Reformer Martin Bucer dies in England at age 60. One of the first Protestant ministers to take the radical step of marrying, he attempted to mediate between Martin Luther and Swiss reformer Ulrich Zwingli, but Luther would have none of it. "It is better for you to have your enemies than to set up a fictitious fellowship," Luther said (see issue 39: Luther's Later Years).
February 28, 1807: Robert Morrison sails from Britain to become the first Protestant missionary ...