Augustine, perhaps the greatest theologian in the history of Western Christianity, was born in 354 at Tagaste in North Africa. In his restless search for truth, he was attracted by Manichaeism and Neoplatonism, and was constantly engaged in an inner struggle with his personal morals. Finally, under the influence of his mother Monnica, Augustine surrendered to the Christian faith in the late summer of 386. He was baptized by Ambrose, Bishop of Milan, on Easter Eve in 387. After returning to North Africa in 391, Augustine found himself unexpectedly chosen by the people of Hippo to be a presbyter. Four years later he was chosen bishop of that city. His spiritual autobiography, , written shortly before 400 in the form of an extended prayer, is a classic of Western spirituality.