Change in religon By MonicaFakhry 313 edict of MIlan by emperor Constantine provides for freedom of Christian religious practise 325 First council of Nicea and formulation of the Nicene creed Jan 1, 1054 Division of christianity into east and west Jan 1, 1095 Firdt crusade proclaimed by Pope Urban II Jan 1, 1209 Saint FRancis founds Order of Friars and the poor Clares Jan 1, 1378 The Western Schism Jan 1, 1517 Martin Luther begins the protestant reformation Jan 1, 1534 Henry VIII establishes the Church of Englandand begins persecutions of Christians Period: Jan 1, 1545 to Jan 1, 1563 Council of Trent Period: Jan 1, 1869 to Jan 1, 1870 First Vatican Council Period: Jan 1, 1962 to Jan 1, 1965 Second Vatican Council, Beginning of US military involvement in Vietnam Jan 1, 2000 yera of Jubilee to celebrate 20 years of christianity