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.
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.
Roosevelt set about to prepare the nation to accept expansion of federal power. ... In his 1933 inaugural address Roosevelt stated: "Our Constitution is so simple and practical that it is possible always to meet extraordinary needs by changes in emphasis and arrangement without loss of essential form.