Events By place Roman Empire Flavius Dalmatius and Domitius Zenofilus are appointed consuls. Emperor Constantine the Great pulls Roman troops out of Britain, and abandons work on Hadrian's Wall. Calocaerus revolts against Constantine I and proclaims himself emperor. Flavius Dalmatius, responsible for the security of the eastern frontier, is sent to Cyprus to suppress the rebellion. December 25 – Constantine I elevates his youngest son Constans to the rank of Caesar at Constantinople.
events by place roman empire flavius dalmatius and domitius zenofilus are appointed consuls emperor constantine the great pulls roman troops out of britain and abandons work on hadrian's wall calocaerus revolts against constantine i and proclaims himself emperor flavius dalmatius responsible for the security of the eastern frontier is sent to cyprus to suppress the rebellion december 25 – constantine i elevates his youngest son constans to the rank of caesar at constantinople