Saint Augustine (354-430) was a Catholic theologian, philosopher, and writer. Born to a Catholic mother and pagan father--Berbers living in Numidia, Roman North Africa (modern day Algeria)--Augustine's lifelong commitment to faith and deeply personal writings make him an important figure for religion, literature, and Western philosophy. He is considered influential for developing the Catholic doctrines of original sin and predestination, though he also made contributions to philosophy that extend beyond religion, including general ethics, just war theory, and the concept of free will. Augustine is also recognized today as an early and significant memoirist and autobiographer, adapting these literary forms in order to blend religious teaching with personal stories and anecdotes.