For nearly 1,500 years, our understanding of the period from 310 to 450 CE was based almost entirely on the writings of the "winners"—the Orthodox bishops who survived the purges. We read about "heretics" only through the eyes of the people who hated them.
In the last century, a series of archaeological breakthroughs has fundamentally shifted the historical narrative:
Modern historians no longer ask "Who was right?" but rather "What was the function of this belief?" We now see the period as a Mosaic of Faiths. The "Orthodoxy" we now take for granted was not an inevitable truth, but the result of a brutal process of elimination—where the winners wrote the history and the losers were erased from the record.
A prime example of this "winner's bias" is the reporting of the Synod of Diospolis. For centuries, the narrative was that Pelagianism was systematically rooted out by the wisdom of the Church. However, modern analysis of the proceedings—including Augustine's own records—reveals a far more chaotic reality: a trial where the prosecution failed because the judges couldn't read the evidence and the "heretic" was too linguistically capable for his own good. This transforms the story from one of "divine truth prevailing" to one of Political Attrition.