1812, Jun 91835-18971910, Jul 10
a German astronomer from Radis, Germany, at the Berlin Observatory who was the first person to view the planet Neptune and know what he was looking at.
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 Timeline (1)
09/23/1846-German astronomer Johann Gottfried Galle and Heinrich d'Arrest confirm the existence of Neptune, the eighth planet
Johann Gottfried Galle1812, Jun 91835
18971910, Jul 10

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