- Possibly cavemen discover Mercury, Venus, Mars, Jupiter, Saturn, and Luna.
- 1781 March 13
- William Herschel discovers Uranus.
- 1801 January 1
- Ceres is discovered and is thought to be a planet. Later on it is decided that it's just to small.
- 1846 September 23
- Johanne Galle discovers Neptune.
- 1930 February 18
- Clyde Tombaugh discovers Pluto.
- Quaoar is found.
- Sedna is found.
- 2005 July 9
- Eris is found.
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.