JoseonJoseon (; tɕo.sʌn), officially Great Joseon (; tɛ.tɕo.sʌn.ɡuk̚), was the last dynastic kingdom of Korea, lasting just over 500 years. It was founded by Yi Seong-gye in July 1392 and replaced by the Korean Empire in October 1897. The kingdom was founded following the aftermath of the overthrow of Goryeo in what is today the city of Kaesong. Early on, Korea was retitled and the capital was relocated to modern-day Seoul. The kingdom's northernmost borders were expanded to the natural boundaries at the rivers of Amrok and Tuman through the subjugation of the Jurchens.
Jurchen peopleJurchen (Manchu: Jušen, dʒuʃən; 女真, Nǚzhēn nü3.zhen1) is a term used to collectively describe a number of East Asian Tungusic-speaking people, descended from the Donghu people. They lived in northeastern China, also known as Manchuria, before the 18th century. The Jurchens were renamed Manchus in 1635 by Hong Taiji. Different Jurchen groups lived as hunter-gatherers, pastoralist semi-nomads, or sedentary agriculturists.
NanjingNanjing (naenˈdʒIN; , Mandarin pronunciation: AUDChinese-Nanjing.oggnan2.jing1), alternatively romanized as Nanking, is the capital of Jiangsu province of the People's Republic of China. It is a sub-provincial city, and a megacity. The city has 11 districts, an administrative area of , and a population of 9,423,400 .