Herophilos (Ancient Greek: Ἡρόφιλος), sometimes Latinized Herophilus (335–280 BC), was a Greek physician deemed to be the first anatomist. Born in Chalcedon, he spent the majority of his life in Alexandria. He was the first scientist to systematically perform scientific dissections of human cadavers and recorded his findings in over nine works which are all lost. He was an early pioneer of the scientific method. Together with Erasistratus he is regarded as a founder of the great medical school of Alexandria.