Chronology
(Approximate where precise dates are not known.)
| B.C. | |
| 624–547 | Thales. |
| 610–546 | Anaximander. |
| 585–526 | Anaximenes. |
| 572–497 | Pythagoras. |
| born 516 or 514 (possibly 540). | Parmenides. |
| 500–428 | Anaxagoras. |
| 494–434 | Empedocles. |
| 5th century | { Œnopides of Chios. |
| { Philolaus. | |
| 427–347 | Plato. |
| 408–355 | Eudoxus. |
| 388–315 | Heraclides of Pontus. |
| 384–322 | Aristotle. |
| 370–300 | Callippus. |
| 310–230 | Aristarchus of Samos. |
| 287–212 | Archimedes. |
| 284–203 | Eratosthenes. |
| 265–190 | Apollonius of Perga. |
| 3rd century | Aratus. |
| fl. 150 | Hipparchus. |
| 135–51 | Posidonius. |
| A.D. | |
| 50–125 | Plutarch. |
| 100–178 | Ptolemy. |
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