6 2 ▁– ▁ 7 ▁April ▁ 1 8 3 6 ), ▁often ▁simply ▁known ▁as ▁‘ D as an ’ ▁( 茶 山 , ▁one ▁of ▁his ▁‘ ho ’ ▁/ ▁pen - names ▁meaning ▁‘ the ▁mountain ▁of ▁tea ’ ), ▁was ▁born ▁on ▁the ▁ 1 6 th ▁day ▁of ▁the ▁ 6 th ▁lun ar ▁month , ▁ 1 7 6 2 , ▁in ▁G w ang ju ▁county , ▁G ye ong gi ▁province , ▁and ▁died ▁there ▁on ▁the ▁ 2 2 nd ▁day ▁of ▁the ▁ 2 nd ▁lun ar ▁month , ▁ 1 8 3 6 . ▁He ▁was ▁one ▁of ▁the ▁greatest ▁think ers ▁of ▁the ▁later ▁Jose on ▁period , ▁wrote ▁highly ▁influ ential ▁books ▁about ▁philosophy , ▁science ▁and ▁theories ▁of ▁government , ▁held ▁significant ▁administrative ▁positions , ▁was ▁a ▁close ▁conf id ant ▁of ▁King ▁Je ong jo ▁( ru led ▁ 1 7 7 6 - 1 8 0 0 ), ▁and ▁was ▁noted ▁as ▁a ▁poet . ▁His ▁philosoph ical ▁position ▁is ▁often ▁identified ▁with ▁the ▁Sil h ak ▁( p ract ical ▁learning ) ▁school , ▁and ▁his ▁concerns ▁are ▁better ▁seen ▁as ▁expl or ations ▁of ▁Ne o - Conf u cian ▁them es . ▁He ▁spent ▁ 1 8 ▁years ▁in ▁ex ile ▁in ▁Gang jin , ▁South ▁Je ol la ▁province , ▁from ▁ 1 8 0 1 ▁until ▁ 1 8 1 8 , ▁on ▁account ▁of ▁his ▁membership ▁of ▁the ▁Southern ers ▁(