Herophilos (335/280 - 255 BC) was a Greek physician deemed to be the first anatomist. 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. Erasistratus (304 - 250 BC) was a Greek anatomist and royal physician under Seleucus I Nicator of Syria. Along with fellow physician Herophilos, he founded a school of anatomy in Alexandria. Dissections of human cadavers were banned in most places at the time, except for Alexandria. Celsus in De Medicina and the church leader Tertullian state that Herophilos vivisected at least 600 live prisoners This image has been color-enhanced.