Construction
Greek architect and engineer Eupalinus of Megara (Greece) [b. c. 570 bce] builds an aqueduct and water-supply system for Megara, although he is much more famous for the water supply system he later builds on Samos. See also 522 bce Construction.
Earth scienceGreek philosopher Xenophanes [b. Colophon, Ionia (Turkey), c. 570 bce, d. 480 bce] speculates that since fossil seashells are found on tops of mountains, the surface of Earth must have risen and fallen in the past. See also 550 bce Biology; 350 bce Earth science.
PhysicsGreek philosopher Anaximenes of Miletus [b. Miletus (Turkey), c. 570 bce, d. c. 500 bce] suggests that air is the primary substance -- it can be changed into other substances by thinning, forming fire; or thickening, forming wind, clouds, rain, hail, earth, and rock. He recognizes that the rainbow is a natural phenomenon rather than a divine one. See also 585 bce Physics.
| Millennium: | 1st millennium BC |
| Centuries: | 7th century BC – 6th century BC – 5th century BC |
| Decades: | 560s BC 550s BC 540s BC – 530s BC – 520s BC 510s BC 500s BC |
| Years: | 539 BC 538 BC 537 BC 536 BC 535 BC 534 BC 533 BC 532 BC 531 BC 530 BC |
| Categories: | Births – Deaths – Architecture Establishments – Disestablishments |
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