What happened before: the transfer of the capital of the Empire to the east or the transformation of Christianity into the state religion?

Constantine I declared Christianity equal with the old Roman religion in 313, but Christianity became obligatory for the officials of the Empire only in 380 – under Theodosius I.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.