The Goryeo Dynasty or Koryo Dynasty also called the "Kingdom of Goryeo", is one of the Korean dynasties which existed from 918 to 1392. It began in 918 with Emperor Taejo. The name "Goryeo" came to be said as "Korea" by foreigners and is still the name of the country. Goryeo united the Later Three Kingdoms of Korea (Later Baekje, Later Goguryeo, and Silla) and by 1374 ruled most of the Korean peninsula until it was removed by the Joseon dynasty in 1392. Goryeo increased its borders to Chung-cheon river and Youngheong (936~943) and the Amnok River (933).