Original sentence: A class of Koreans educated along Confucian lines developed rapidly.Additionally, extensive trade began, including the ginseng trade, as well as exchanges in medicine, technology and science.As had occurred numerous times in China, the capital city under King Yi (Wong Yi) was moved to Hanyang-gun, Seoul, on the mighty Han river.In return China offered support, training and protection when required.Old maps indicate that Seoul (or Han Yang, later, and Hang Sung) during this period was crossed by many tributaries of the Han river.The Joseon Dynasty began with an alliance with China to overthrow the Mongols (on the force of their cavalry) who had invaded Korea in 1231.The royal dynasty at the time, Goryeo, found refuge on Kanghwa island, near present-day Seoul.Under the political situation of that time, King Yi paid tribute to the Chinese emperors
Edited sentence: "Note: This section is historically inaccurate and gramatically problematic.--thevizier 21:07, 5 May 2005 (UTC)".As had occurred numerous times in China, the capital city under King Yi (Wong Yi) was moved to Hanyang-gun, Seoul on the mighty Han river.For example, there was no said-alliance with China, the Mongols never really annexed Korea, and the word superlative is used inappropriately.Furthermore, Yi Seongye's coup was not a Chinese backed coup-- in fact, Ming-Joseon relations would be strained until the early 15th Cenutyr.I will when I have time if no one does it.Seoul (or Han Yang, later and Hang Sung)at that time was a multiple-rivered city, with tributaries from the Han river, as the old maps indicate.Someone please fix this article.The Joseon Dynasty began with an alliance with China to overthrow the Mongols and their superlative cavalry who had invaded Korea in 1231.The royal dynasty at the time, Goryeo, found refuge on Kanghwa island, near current day Seoul after a fight.Under the political situation of that time, King Yi paid tribute to the Chinese emperors: in return extensive trade began, China offered both support, training and protection when required; and the ginseng trade developed, as well as profitable exchanges in medicine, technology and science, and an entire Korean educated Confucian class developed with startling speed