I think philosophy, science, and communication
Answer:
Edict of Milan
Explanation:
With the passage in AD 313 of the Edict of Milan, in which the Roman Emperors Constantine the Great and Licinius legalised the Christian religion, persecution of Christians by the Roman state ceased.
By The German Radio. Back In WW2 Germans Were Forbidden To Use Radios Other Than The Ones Given To Them By Hitler. ( If They Were Caught With Outside World Radios They Were Killed) The Nazi Radio Transmitted The Laws And German Victorys And Other News