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- [[Category:BCE deaths]] [[Category:287 BC births]] ...25 KB (3,932 words) - 07:05, 1 February 2025
- * Around 600 BCE, Pythagoras observed that the tones of a lyre sound most harmonious when th [[Category:BCE births]] ...131 KB (21,060 words) - 02:28, 1 March 2025
- ...ith improvements—the heliocentric system of Aristarchos of Samos (3rd cent BCE). [[Category:1571 births]] ...74 KB (11,859 words) - 22:58, 6 October 2024