▁out ▁of ▁context ▁in ▁an ▁un system atic ▁way , ▁only ▁black - and - white ▁photos ▁of ▁the ▁find ▁exist , ▁and ▁the ▁original ▁description ▁is ▁in ▁Korean ▁only . ▁ ▁Cult iv ation ▁was ▁likely ▁a ▁supp lement ▁to ▁a ▁subs istence ▁regime ▁that ▁continued ▁to ▁heavily ▁emphas ize ▁deep - se a ▁fish ing , ▁shell fish ▁gather ing , ▁and ▁hunting . ▁" Class ic ▁Je ul mun " ▁or ▁B its alm un ui ▁pot tery ▁( H ang ul : ▁ 빗 살 무 늬 토 기 ) ▁in ▁which ▁comb - pattern ing , ▁cord - w ra pping , ▁and ▁other ▁decor ations ▁extend ▁across ▁the ▁entire ▁outer ▁surface ▁of ▁the ▁vessel , ▁appeared ▁at ▁the ▁end ▁of ▁the ▁Early ▁Je ul mun ▁and ▁is ▁found ▁in ▁West - central ▁and ▁South - co ast al ▁Korea ▁in ▁the ▁Middle ▁Je ul mun . ▁ ▁Late ▁Je ul mun ▁The ▁subs istence ▁pattern ▁of ▁the ▁Late ▁Je ul mun ▁period ▁( c . ▁ 2 0 0 0 - 1 5 0 0 ▁BC ) ▁is ▁associated ▁with ▁a ▁de - emph asis ▁on ▁explo itation ▁of ▁shell fish , ▁and ▁the ▁settlement ▁pattern ▁registered ▁the ▁appearance ▁of ▁interior ▁settlement s ▁such ▁as ▁Sang ch on - ri ▁( see ▁Da ep ye ong ) ▁and ▁Im bul - ri . ▁Lee ▁suggests ▁that ▁environmental ▁stress ▁on ▁shell fish ▁populations ▁and ▁the ▁movement ▁of ▁people ▁into ▁the ▁interior ▁prompt ed ▁groups ▁to ▁become ▁more ▁reli