What Were the Crusades?

S1, E1: Consider the spirit of the Crusades, as they melded the medieval conception of pilgrimage with that of holy war. Examine the idea of plenary indulgence, the remission of penalties due to sin, and the notion of avoiding Purgatory, both of which were understood as spiritual rewards for going on Crusade. Learn about the history of pilgrimage and holy war within Christianity before the Crusades.