Church in History Timeline By stevie.tapalis 451 The Council Of Chalcedon May 3, 1054 East-West Schism Who, Whta, When, Where Why? May 12, 1347 The Plague/ The Black Death Jul 4, 1517 The Reformation- Martin Luthers Publication Of 95 Thesis Dec 13, 1545 The Council Of Trent Sep 25, 1555 The Reformation- Peace Of Augsburg Jun 29, 1868 The First Vatican Council Oct 11, 1962 The Second Vatican Council