Eusebius of Caesarea writes the Onomasticon. The Fifty Bibles of Constantine are commissioned for use in Constantinople. Gregory the Illuminator withdraws to a small sanctuary in the Daranali province (Armenia).
Constantine I dedicates the Church of the Holy Apostles in Constantinople.source
The Fifty Bibles of Constantine are commissioned for use in Constantinople.source
Gregory the Illuminator withdraws to a small sanctuary in the Daranali province (Armenia).source
Emperor Constantine the Great vigorously promotes Christianity, confiscating the property and valuables of a number of pagan temples throughout the Roman Empire.source