K
- Kasiski analysis: invented by Charles Babbage who recorded it in his diary but didn't otherwise publish it.
- Kepler's Supernova was first observed by Italian astronomers several days before Johannes Kepler
- Killing form: invented by Élie Cartan
- Kuiper belt: theoretically described by a number of astronomers before Gerard Kuiper; Kuiper theorized that such a belt no longer existed.
Read more about this topic: List Of Examples Of Stigler's Law