Saint Augustine of Hippo (13 November 354 - 28 August 430 AD) was a Roman African, Manichaean, early Christian theologian, doctor of the Church, and Neoplatonic philosopher from Numidia. His writings influenced the development of the Western Church and Western philosophy, and indirectly all of Western Christianity. He was the bishop of Hippo Regius in North Africa and is viewed as one of the most important Church Fathers of the Latin Church for his writings in the Patristic Period. Augustine was one of the most prolific Latin authors in terms of surviving works. He authored more than one hundred separate titles, including apologetic works against the heresies of the Arians, Donatists, Manichaeans, and Pelagians; texts on Christian doctrine; critical examinations of the bible; and many sermons and letters. Augustine is best known for his Confessions, a personal account of his earlier life, and De civitate Dei (The City of God), which he wrote to restore the confidence of his fellow Christians after the sack of Rome.