Constantine I and Licinius agreed to the Edict of Milan. Which was for the toleration of Christians.
1598
Edict of Nantes, 1598; revoked 1685.
Galerius issued the Edict of Toleration in 311 CE, thus bringing to an end the Great Persecution that he himself had urged on his predecessor, Diocletian. This brought to an end a period of three centuries during which Christianity was theoretically illegal, although usually ignored, often tolerated and rarely persecuted. In practice, the Great Persecution, which began in 303 CE, had already come to an end in the west, following the abdication of Diocletian in 305, and the immediate effect of the Edict of Toleration was to end the persecution of Christians in the east. Theoretically, the Edict of Toleration ought to have provided permanent freedom of religion for the entire Roman Empire, and thus ensure that Christianity would never again be persecuted. In practice, a succession of Christian emperors meant that Christianity no longer needed this safeguard, but that the pagans began to suffer persecution, regardless of the Edict of Toleration. This analysis shows that the practical effect of the Edict of Toleration on the spread of Christianity was quite limited. On the one hand, the Christian emperors did not require a law in order for them to encourage the new religion. On the other hand, the Edict of Toleration did nothing to assist the pagan temples or to slow the advance of Christianity.
He rescinded the Edict of Nantes, which had provided for toleration of Hugenots, and supported their persecution.
Constantine the Great did not legalise Christianity. Christianity was persecuted, but it was not made illegal. Constantine finalised the end of the Great Persecution which had been decreed by the Edict of Toleration by (emperor) Galerius in 311. The Edict of Milan on 313 which Constantine signed together with Licinius, his co-emperor, reiterated the toleration of Christianity and provided for compensation by the state for those who returned Christian property which had been confiscated and sold during the Great Persecution. This edict was aimed at the governors of the provinces in the eastern part of the empire because a junior emperor in charge of Turkey Syria and Egypt ignored Galerius' edict and continued the persecution.
The Edict of Toleration is actually the Edict of Milan which was to declare toleration of Christians in Milan. Licinius and Constantine were the ones who agreed on it.
Which one? There have probably been hundreds over the centuries. If you mean the Edict of Milan, it was the Western Roman Emperor Constantine I and the Eastern Roman Emperor Licinius Augustus. If you mean the Edict of Nantes it was Henry IV.
1598
Which one are you talking about? The Edict of Toleration?
Galerius issued the Edict of Toleration, permitting freedom of religion throughout the Roman Empire. His co-emperors Constantine and Licinius jointly issued the Edict of Milan, which went a good deal further by granting positive advantages and privileges to the Christian community.
Edict of Nantes, 1598; revoked 1685.
Christians to worship publicly
1598 from the Edict of Nantes
He rescinded the Edict of Nantes, which had provided for toleration of Hugenots, and supported their persecution.
They agreed to the Edict of Nantes
Galerius issued the Edict of Toleration in 311 CE, thus bringing to an end the Great Persecution that he himself had urged on his predecessor, Diocletian. This brought to an end a period of three centuries during which Christianity was theoretically illegal, although usually ignored, often tolerated and rarely persecuted. In practice, the Great Persecution, which began in 303 CE, had already come to an end in the west, following the abdication of Diocletian in 305, and the immediate effect of the Edict of Toleration was to end the persecution of Christians in the east. Theoretically, the Edict of Toleration ought to have provided permanent freedom of religion for the entire Roman Empire, and thus ensure that Christianity would never again be persecuted. In practice, a succession of Christian emperors meant that Christianity no longer needed this safeguard, but that the pagans began to suffer persecution, regardless of the Edict of Toleration. This analysis shows that the practical effect of the Edict of Toleration on the spread of Christianity was quite limited. On the one hand, the Christian emperors did not require a law in order for them to encourage the new religion. On the other hand, the Edict of Toleration did nothing to assist the pagan temples or to slow the advance of Christianity.
The Edict of Toleration had already recognised the right of people of all religions, including Christians, to worship as they pleased. The Edict of Milan granted Christians further privileges.