he became the first christian Emperor (Caesar)
Christianity.
It is said that Constantine became a Christian before he died.
Constantine I, also called Constantine the Great, became Emperor of Rome in 306AD. He became the sole ruler of the Roman Empire in 324AD.
Constantine I (or the Great )was the 57th Roman Emperor. Therefore, he became famous in the Roman Empire.
In the Roman Empire up to the time of Constantine, the official religion was Greco-Roman paganism. After Constantine it became Christianity.
He was the only Roman emperor who became a saint.
Roman Emperor Constantine founded Constantinople, which is current day Istanbul, and it became a major part of the Eastern Roman Empire.
After the Emperor Constantine converted to Christianity, that became the official religion of the Roman Empire.
Constantine, he became a Christian, the city was Constantinople which later became Istanbul
I don't know, but I think it was when Constantine became Emperor
Pope Constantine became Pope on March 25, 708 C.E. Do not confuse Pope Constantine with the Roman Emperor Constantine the Great (ca. 272-337).
Constantine the Great consecrated Nova Roma, later named Konstantinoupolis, as the new capital of the Roman Empire on the site of Byzantium after 6 years of building, in 330 CE.