Augustine (354–430), born in Thagaste, North Africa, November 13, synthesized Platonism with Christian theology, and is considered a doctor of the European church. He taught rhetoric in Carthage, Rome, and Milan, until his conversion (386) and entry into monastic life; he became a presbyter (391) and bishop of Hippo (396), now Annaba, Algeria. Representative of the implications of his thought for science, technology, and ethics is the fact that in his early years he took an interest in one of the sciences of his day, astrology, and may even have practiced it himself; later he argued decisively against it. Augustine died in Hippo on August 28.