September 21, 1452: Girolamo Savonarola, a Dominican preacher and reformer famous for his religious zeal and extraordinary piety, is born.
September 21, 1522: First edition of Martin Luther's German translation of the New Testament is published (see issue 34: Luther's Early Years).
September 21, 1558: Charles V, Holy Roman Emperor, dies. Charles called the Diet of Worms in 1521, which condemned Martin Luther (see issue 34: Luther's Early Years).
September 21, 1944: Founded on April 12, 1944 in Columbus, Ohio, The National Religious Broadcasters organization is officially ratified by constitutional convention at Chicago's Moody Memorial Church.