Joseon (July 1392 - August 1910) (also Chosun, Choson, Chosŏn), was a sovereign state founded by Ahtaejo (Lee Sung-gae de Jeonju) Lee Sung-gye in what is modern day Korea, and lasted for five centuries as one of the world's longest running monarchie... http://en.wikipedia.org/wiki/Joseon_Dynasty