Task: Text Categorization
Input (English): He was brought up at the estate of Macellum in Cappadocia and as a youth converted to Neoplatonism. Ammianus Marcellinus describes him as a stocky, athletic type, which is confirmed by his statue in the Louvre. He defeated and expelled the Alemanni and the Franks, and was set to take on Constantius II, when Constantius died. After assuming power in 361, he ruled for only twenty months. FTP, identify this nephew of Constantine the Great who gained his nickname when he renounced Christianity and became a pagan.
Output (English): History