Protagoras · Socrates Were Protagoras and Socrates alive at the same time? Yes. Protagoras and Socrates were alive at the same time, from c. 470 BC to c. 420 BC. ProtagorasPre-Socratic Greek philosopherBorn c. 490 BC · died c. 420 BCSocrates5th-century BCE Greek philosopherBorn c. 470 BC · died 399 BC ConfuciusAeschylusSophoclesProtagorasHerodotusSocratesHippocratesAristophanes Protagoras and Socrates 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.