What Roman Empire ruler killed many Christians

There were many emperors in the Roman Emperors that killed Christians such as emperors Diocletian, Maximian, Galerius, and Constantius. But the first emperor who persecuted Christians was emperor Nero.

The answer

On February 27, 380, the Roman emperor of the East Theodosius (347-395) signed, in the presence of the western Roman emperor Valentinian (371-392) and his co-ruler half-brother Gracian (359-383) a decree with the who declared Christianity the religion of the State and stipulated a punishment for those who practiced pagan cults.

Note

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