This isn't talked about more often but its kinda funny. During roughly the American Revolution there were 10 planets.
Neptune/Pluto weren't yet discovered. Instead we had Mercury, Venus, Earth, Mars, Jupiter, Saturn, George (Uranus), Ceres, Vesta, and several other minor asteroids.
Wow. So many downvotes. You guys must really hate pluto. Fyi. Definition is from iau. Earth would also fall under same criteria if it was further than neptune...
Bolden says he still considers Pluto a planet. http://www.telegraph.co.uk/news/science/space/11739763/Pluto...