Detailed Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: Possibly as a response to rumors of their illicit relationship, this man put his son Crispus and wife Fausta to death. This man brought back the solidus coins, introduced by his predecessor, and regained control over the empire after a meeting at Chrysopolis led to the surrender of his co-emperor. The buckling of a wooden or possibly pontoon bridge proved decisive in his greatest victory. That engagement was the battle of the Milvian Bridge, during which his rival Maxentius drowned in the Tiber. Along with co-emperor Licinius, the man issued the Edict of Milan, introducing religious tolerance in Rome. For 10 points, name this Roman emperor who rebuilt Byzantium and converted to Christianity.
A:
History