Constantine the Great was the first Roman ruler to be converted to Christianity. He was the founder of Constantinople, which remained the capital of the Eastern Roman Empire until 1453.
<Tab/>Constantine the Great was born Flavius Valerius Constantinus in what is now Serbia. He was the son of the commander Constantius Chlorus and Helena. Constantius became co-emperor in 305. Constantine, who had shown military talent in the East, joined his father in Britain in 306. He was popular with the troops, who made him emperor when Constantius died later the same year. Over the next 2...