Korea emerged as a singular political entity in 676 AD, after centuries of conflict among the Three Kingdoms of Korea, which were unified as Unified Silla to the south and Balhae to the north. Unified Silla divided into three separate states during the Later Three Kingdoms period. Goryeo, which had succeeded Goguryeo, defeated the two other states and united the Korean Peninsula. Around the same time, Balhae collapsed and its last crown prince fled south to Goryeo. Goryeo (also spelled as Kory?), whose name developed into the modern exonym "Korea", was a highly cultured state that created the world's first metal movable type in 1234. However, multiple invasions by the Mongol Empire during the 13th century greatly weakened the nation, which eventually agreed to become a vassal state after decades of fighting. Following military resistance under King Gongmin which ended Mongol political influence in Goryeo, severe political strife followed, and Goryeo eventually fell to a coup led by General Yi Seong-gye, who established Joseon in 1392.
Asia League Ice Hockey is an association which operates a professional ice hockeyleague based in East Asia, with seven teams from Japan, China, and South Korea. The league is headquartered in Japan. At the end of the playoffs every year the winner is awarded The Championship Trophy. The league was formed in 2003 due to declining popularity in the Japan Ice Hockey League and the folding of the Korea Ice Hockey League. It was formed with the goal of promoting hockey and developing players' skills. The league initially comprised five teams in two countries. It expanded to highs of four countries (2004-05 season) and nine teams (2005-06 season) although it is currently made up of seven teams from three countries. The league draws most of its players from the home countries of its teams. However, to help build skill and raise the level of competitiveness the league allows each team a certain number of foreign imports on their roster.
Kim Jeong-ho (pen nameGosanja; 'the guy of old mountain' 1804-1866?) was a Korean geographer and cartographer. He was born in Hwanghaedo. It is believed that he walked the entire length and breadth of the Korean peninsula, through mountain and valley, in order to research and compile his magnum opus, the DaedongYeojido, (, ) a map of Korea that was published in 1861, from which was subsequently made a single-sheet version, the DaedongYeojiJeondo ( ).