1690 In Science

Astronomy

• Giovanni Cassini observes differential rotation within Jupiter's atmosphere.
• Earliest recorded sighting of the planet Uranus, by John Flamsteed, who mistakenly catalogues it as the star 34 Tauri

Births

• March 18 - Christian Goldbach, Prussian mathematician (died 1764)
• Jan Frederik Gronovius, Dutch botanist (died 1762)

Deaths

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