History of Philosophy By facebooker_2084240758381285 Period: 624 BCE to 546 BCE Thalès Period: 585 BCE to 525 BCE Anaximènes Period: 570 BCE to 480 BCE Xénophane Period: 470 BCE to 399 BCE Socrates Period: 460 BCE to 370 BCE Leucippe Period: Jun 21, 1905 to Apr 15, 1980 Jean Paul Sartre