Aristotle · Theophrastus Were Aristotle and Theophrastus alive at the same time? Yes. Aristotle and Theophrastus were alive at the same time, from c. 371 BC to 322 BC. AristotleGreek philosopherBorn 384 BC · died 322 BC, aged 61 or 62TheophrastusGreek philosopherBorn c. 371 BC · died 287 BC HippocratesDiogenes of SinopeAristotleChanakyaTheophrastusAlexander the GreatEpicurusAshoka Aristotle and Theophrastus in bold, with some of their best-known contemporaries. Drag across to see the age each reached in any year. Faded ends mark uncertain dates.