![Among the 14 emperors of the Eastern Han Dynasty, why did only 4 monarchs reign for more than 20 years? Emperor Huan of Han was one of them[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)
Liu Bing, courtesy name Ming, was the son of Liu Bao, the Emperor of Han Shun, and his mother was Yu Guiren. On April 15 of the first year of Jiankang (144), Liu Bing was made crown prince by Emperor Shun of Han. Jiankang first year (144) eight...
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