380 AD: Edict of Thessalonica - Emperor Theodosius I declared Nicene Christianity the state religion, initiating persecution of Arian Christians, pagans, and heretics through bans on gatherings and temple destructions.
It was buried in the desert for its protection because after Emperor Theodosius, non-Orthodox ideas were more or less illegal and then it resurfaced after the Second World War.
In 381 CE, the Roman Emperor Theodosius declared a decisive edict to determine acceptable narratives for all Roman citizens.
Emperor Theodosius's edicts in 381 CE sought to eliminate alternative religious teachings and reinforce orthodox Christianity.
This occurred later under Emperor Theodosius I.
By the end of the 4th century CE, Emperor Theodosius ordered the closure of pagan temples, and Delphi’s oracle was eventually abandoned.
It was destroyed in 394 AD, on the orders of Emperor Theodosius I during the Persecution of pagans in the late Roman Empire.