Mostly with bloodshed.
AnswerConstantine:He supported the Christian Church.
constantine spread the religion of christianity
The Edict of Milan helped spread Christianity by allowing all religions in Rome.
Emperor Constantine I and his mother Helena.
The Edict of Milan helped spread Christianity by allowing all religions in Rome.
Christianity
Diocletian and Constantine were the key. Both rulers were supporters of Christianity, and helped spread it among their people. Constantine is well known for creating the Christian city of Constantinople (now called Istanbul).
Kings and Monasteries helped to spread Christianity.
Emperor Constantine
As Roman Emporer, Constantine declared Christianity to be the official religion of the Roman Empire. At the time, the Empire was vast, so Christianity spread quickly.
Constantine
In 313AD, Constantine issued the Edict of Milan legalizing Christian worship.
He ended the persecution of Christians