Octobert 27 and 28 mark a momentous transition in Christian history, writes Simon Barrow, director of Ekklesia:
Constantine's 'vision of the Cross' in 312, and his attribution of military victory at the Battle of Milvian Bridge the next day to God, was the beginning of Christendom in Europe - an era which mixed civilisation with bloodshed, saints with militarism, and faith with often brutal sacralised-secular power....
Yet embedded in this disturbing history (not least in its victims) there is another, liberating story. The Anabaptists, the Quakers and other non-conformists refused state religion and violence. In the nineteenth and twentieth century Christians campaigned for social justice and helped form peace movements which had a worldwide impact.
Read more of "History Today: War Religion, Peace Religion"