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April 21, 1109: Anselm, archbishop of Canterbury and one of the most profound thinkers of the Middle Ages, dies around age 76. He attained fame for his argument that faith is the precondition of knowledge ("credo ut intelligam"), his "satisfaction theory" of the atonement ("No one but one who is God-man can make the satisfaction by which man is saved") and for his ontological argument for God's existence.
April 21, 1142: Medieval French philosopher, teacher, and theologian Pierre Abelard dies. Though ...
