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"Major Heresies" from the Theology.com Website
175 to 324 AD
325 to 439 AD
440 to 1384 AD
1385 to 1564 AD
"Medieval Heresies" from Fordham University's "Internet Medieval Sourcebook" Website
- Caesarius of Heisterbach: Medieval Heresies,
from Dialogue on Miracles, V.
Discussion of Waldensians, Albigenses, and "intellectual heretics" at Paris.
- The Inquisition
Websites on Church History