
The yangban were part of the traditional ruling class or nobles of dynastic Korea during the Joseon Dynasty. The yangban were mainly composed of civil servants and military officers. The yangban were either landed or unlanded aristocracy who comprised the Korean Confucian idea of a `scholarly official.` Basically, they were administrators and bu.....
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http://en.wikipedia.org/wiki/Yangban

(Korean: `two groups`), the highest social class of the Yi dynasty (1392–1910) of Korea. It consisted of both munban, or civilian officials, and ... [4 related articles]
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http://www.britannica.com/eb/a-z/y/3

The scholar-official ruling class of traditional Korea, distinguished for its knowledge of neo-Confucianism and its monopoly of high government positions; more broadly, families with lineages descended from scholar-officials, and scholars who had passed the civil service examinations even though they had not secured an official post.
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https://www.photius.com/countries/korea_south/glossary/index.html
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