April 12, 1204: The Fourth Crusade sacks Constantinople, an allied city. The attack virtually destroyed the Byzantine Empire and ruined any hope of reunifying eastern and western Christians (see issue 40: The Crusades).
April 12, 1850: Adoniram Judson, pioneer Baptist missionary to India and Burma, and Bible translator, dies during a sea voyage. He and his wife, Ann, were the foremost American missionary heroes of their day.
April 12, 1914: A convention in Hot Springs, Arkansas, having founded the Assemblies of God adjourns. The assembly of God which would become the world's largest Pentecostal denomination (see issue 58: Pentecostalism).
April 12, 1944: The National Religious Broadcasters Association is founded in Columbus, Ohio, in order to represent and build the credibility of Evangelical Christian broadcasters after a set of regulations, proposed by the Federal Council of Churches, banned paid religious programming and limited broadcast personalities to denominationally approved individuals, effectively removing Evangelicals from the airwaves.