10th Century
- Muhammad ibn Zakarīya Rāzi (Rhazes): refutation of Aristotelian classical elements and Galenic humorism; and discovery of measles and smallpox, and kerosene and distilled petroleum
- Ibn Sahl: Snell's law of refraction
Read more about this topic: Timeline Of Scientific Discoveries
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“They are fools who do not know how much the half exceeds the whole.”
—Hesiod (c. 8th century B.C.)