Joseon ( Korean : 조선 ; Hanja : 朝鮮 ; also Chosŏn , Choson , Chosun , Cho-sen ) , was a Korean state founded by Taejo Yi Seong-gye that lasted for approximately five centuries , from July 1392 to October 1897 .
Joseon ( Korean : 조선 ; 朝鮮 ; July 1392 - October 1897 ) ( also Chosŏn , Choson , Chosun , Cho-sen ) , was a Korean state started by Taejo Yi Seong-gye .