A high-school textbook used for the AP (Advanced Placement) European History exam equates the Sacraments of the Eucharist and Penance with “high magic” and says that, to combat witchcraft in the 13th century, “the Church declared its magic to be the only true magic.”
The Western Heritage Since 1300 (10th Edition, AP Edition, is published by Pearson Education Inc., publishing as Prentice Hall) is written by Donald Kagan of Yale University, Stephen Ozment of Harvard University, and Frank M. Turner of Yale Unversity.
We are NOT making that up.
And there's even more at the link.
Revision-headline: Go to Yale OR HARVARD, Get Stupid