The nineteenth day of April.
- 1012. Martyrdom of St. Alphege in Greenwich, London.
- 1529. At the Second Diet of Speyer, a group of rulers (German: Fürst) and independent cities (German: Reichsstadt) protests the reinstatement of the Edict of Worms, beginning the Protestant movement.
- 1692. Bridget Bishop goes on trial in Salem, Massachusetts for witchcraft.
- 1909. Joan of Arc receives beatification.
- 1913. Publication of the Catholic Encyclopedia.
- 1993. - The 51-day siege of the Branch Davidian building outside Waco, Texas, USA, ends when a fire breaks out. Eighty-one people die.
- 2005. Cardinal Joseph Alois Ratzinger is elected Pope, takes the name Pope Benedict XVI.
- 1012. - Alphege, Archbishop of Canterbury (b. 954)
- 1054. Pope Leo IX (born 1002)
- 1560. Philipp Melanchthon, Lutheran theologian (born 1497.)
- 1840. Jean-Jacques Lartigue, Roman catholic bishop of Montreal (b. 1777)
- 1892. Fr. Thomas Dale SSC, Anglican clergyman prosecuted for Ritualist practices in the 1870s (b. 1821)
- 1934. Metropolitan Victor (Abo-Assaley) of New York
- 1993. David Koresh, leader of Branch Davidians (b. 1959)