The answer is probably too complex for a quick "WikiAnswer."
Here's a brief summary.
Various (non-Christian) commentators describe with fair believability the conditions in the Empire under various emperors. Starting with Nero (54-68 C.E.), most did not persecute Christians specifically, but rather targeted all groups that were seen as subversive. Christians were certainly part of that, but most emperors did not specifically seek out Christians.
By the time of Diocletian (284-305) the imperial attitude towards groups like the Christians was quite mellow. Diocletian, however, had a personal problem with Christians, and under his reign there was a final Great Persecution. Just how many died isn't clear, and estimates range from maybe 2,000 (Origen) to over 100,000.
Diocletian's 21 year reign ended with a confused welter of successors who ruled each for a few months at most, followed by Constantine the Great who became emperor in 306. In 311 his co-emperor Galerius stopped imperial persecution of Christians. A year or so later Constantine declared himself Christian and issued the Edict of Milan, which not only declared toleration for Christians, but reversed all judgments against Christians for their religion, including returning confiscated property.
As the first Christian emperor of Rome, Constantine was also the first Christian emperor to go to war against other Christians over a difference in beliefs.
Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.
The last persecution of Christians (303-311) and the worse one, is attributed to the emperor Diocletian. However, there was the work of his co-emperor Galerius behind it. Galerius was a fiercer persecutor than Diocletian. This is the only persecution of Christians which has Benn called Great Persecution.
The persecution of early christians happened first during the time of Emperor Nero,Emperor Hadrian,Decius and the last greatest persecution was the time of Emperor Diocletian.
Constantine was the first emperor to *accept* Christianity but he did *not* make it the official religion of the Roman Empire. Constantine did put a stop to Christian persecution, returned Christian property from pagans and reduced support for pagan religion.On February 27 380 Theodosius I "... declared "Catholic Christianity" the only legitimate imperial religion, ending state support for the traditional Roman religion."This was over 40 years after Constantine had died.Christian persecutions still continued - those following other variants of it.
He was the Roman Emperor who ended Christian persecution and declared Christianity the religion of Rome
None. Christianity was insulated from persecution then.
Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.Constantine I was the emperor who made Christianity a legal, accepted religion.
The last persecution of Christians (303-311) and the worse one, is attributed to the emperor Diocletian. However, there was the work of his co-emperor Galerius behind it. Galerius was a fiercer persecutor than Diocletian. This is the only persecution of Christians which has Benn called Great Persecution.
Persecution of Christians, and maybe some others.
At first the Christians were persecuted. To start with they were used as scapegoats for internal problems. Then they were seen as threat to the Roman state because the Romans saw the Roman religious practices as part of the foundation of their state and a large part of the population of the empire had become Christian. Emperor Diocletian unleashed the Great Persecution of Christians in 303. The Edict of Toleration by (emperor) Galerius of 311 decreed the toleration of Christianity, which established freedom of worship for the Christians and their safety from persecution. The Edict of Milan of 313 reiterated this freedom of worship and extended it to all religions. Christianity became accepted and emperor Constantine I begun a large scale programme of Christan church building.
The persecution of early christians happened first during the time of Emperor Nero,Emperor Hadrian,Decius and the last greatest persecution was the time of Emperor Diocletian.
Emperor Galerius issued the Edict of Toleration in 311, bring the Great Persecution of 303-311 to an end. However, persecution of some Christians was renewed under the rule of Emperor Constantine, who determined that Gnostic Christians were not covered by the Edict of Toleration or his own Edict of Milan, issued in 313. Constantine also ordered the persecution of Donatist Christians, but later rescinded the order because it was not having the desired effect. Emperor Theodosius made Christianity the official religion of empire in 380, but only the Christianity "taught by the bishops of Rome and Alexandria". Persecution of Christians outside the mainstream Church continued for many centuries, so it is not possible to identify a single time or person who ended this persecution.
Constantine was the first emperor to *accept* Christianity but he did *not* make it the official religion of the Roman Empire. Constantine did put a stop to Christian persecution, returned Christian property from pagans and reduced support for pagan religion.On February 27 380 Theodosius I "... declared "Catholic Christianity" the only legitimate imperial religion, ending state support for the traditional Roman religion."This was over 40 years after Constantine had died.Christian persecutions still continued - those following other variants of it.
You may mean the Diocletianic persecution. If so, it is the persecution of Christians by the Roman Emperor Diocletian (ruled from 284 to 305 AD).
He was the Roman Emperor who ended Christian persecution and declared Christianity the religion of Rome
There was only one Roman Empire. The Christians stared being persecuted under emperor Nero who used them as a scapegoat. Then there were alternations of periods of persecution and periods of toleration. Emperor Decius (ruled 249-51) started a very severe persecution of Christians which has been called the Decian Persecution. His son and successor, Gallus (ruled 251-53) resumed the persecution, though this time it was milder. Emperor Valerian (ruled 253-260) issued an edict of persecution in 258, ordered the Christian clergy to perform sacrifices to the Roman gods or be banished. Then he ordered the execution of Christian leaders and Christian senators to perform the worship of Roman gods or lose their title and their property or even be executed. Civil servants who did not worship Roman gods were reduced to slavery. Emperor Gallienus (ruled 260-68) issued edict of toleration of Christianity. The worse persecution of Christian was the great Persecution unleashed by emperor Diocletian in 303. It was ended by the Edict of Toleration by (emperor) Galerius of 311 which declared Christianity a tolerated religion and established freedom of worship, and the Edict of Milan signed by co-emperors Constantine the great and Licinius. The latter reiterated the toleration of Christianity and established compensation by the state for the return of property which had been confiscated from the Christians during the persecution. There were not any Christian persecution after this.
a roman emperor who accepted Christianity