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It isn't a stretch of the imagination to see how competing ideas were dealt with in ancient times with harsh censorship.
A few tidbits from Wikipedia. (You can investigate the particulars beyond Wiki, certainly)
After Constantine:
According to scholar Elaine Pagels, "In AD 367, Athanasius, the zealous bishop of Alexandria… issued an Easter letter in which he demanded that Egyptian monks destroy all such unacceptable writings, except for those he specifically listed as 'acceptable' even 'canonical' — a list that constitutes the present 'New Testament'". [citation needed] Although Pagels cites Athanasius's Paschal letter (letter 39) for 367 AD, there is no order for monks to destroy heretical works contained in that letter. [1]
Thus, heretical texts do not turn up as palimpsests, washed clean and overwritten, as pagan ones do; many early Christian texts have been as thoroughly "lost" as if they had been publicly burnt.
Before Constantine:
Christian books were rounded up and burned by a decree of emperor Diocletian in 303, calling for an increased persecution of Christians.
During Constantine's rule:
The books of Arius and his followers were gathered up and burned after the first Council of Nicaea (325), for heresy.
After Constantine:
In 364, the Christian Emperor Jovian ordered the entire Library of Antioch to be burnt [10] . It had been heavily stocked by the aid of his non-Christian predecessor, Emperor Julian.