"In the eastern part of the empire, "orthodox" Christians killed large numbers of "heretical" Christians. The death toll of Vestal Virgins, Arians, Athanasians, Donatists, and Novatians killed by other Christians between 330 and 380 was many times more than had been killed by pagan persecution in two and half centuries. [McCabe, 1939, 55]"
"Emperor Honorius had published the Edict of Unity, "which ordered the dissolution of the Donatist [Christian] Church." [Bokenkotter, 79; Valantasis, 270]"
"A law aimed specifically at Donatists and Manichaeans criminalized their beliefs. Punishment was confiscation of all their property. They were barred from inheritance. Convicted heretics were also barred from buying, selling, or making a contract. [Valantasis, 270]"
"Emperor Honorius decreed that heretics and pagan worshipers were to be punished by "exile and blood." [Ellerbe, 28]
Repression of pagans by secular authorities was "unavoidable" and "not necessarily a case of persecution for religious opinions." [Catholic Encyclopedia, "Donatists"]