1696: neptune (S.S.3) Aug 6, 2019

Again, of the two planets unknown (as planets) to the Romans, 'Neptune' still got a Roman name (see 'uranus' here). At first, it was just called "Le Verrier's planet" after the discoverer, but the English again pushed for Uranus to be called 'Herschel' after its discoverer, and these were used for a short time, until it was decided to keep tradition and name the planets after Roman mythology, so 'Neptune' was selected, as it is an icy, blue planet, and therefore named after the god of the ocean. Many other language's name for the planet come from their respective mythology around the ocean as well, from Chinese to Hebrew and even Nahuatl, rather than using the same word. There will be more on this tomorrow.