▁of ▁the ▁people ▁of ▁the ▁valle ys ▁is ▁uncertain . ▁ ▁The ▁find ings ▁at ▁Se chin ▁B ajo ▁appear ▁to ▁contradict ▁the ▁theory ▁of ▁anth rop ologist ▁Michael ▁E . ▁M ose ley ▁and ▁others ▁that ▁the ▁earliest ▁civil izations ▁in ▁Peru ▁were ▁based ▁not ▁on ▁agricult ure , ▁but ▁on ▁explo itation ▁of ▁the ▁rich ▁mar itime ▁resources ▁of ▁the ▁Per uv ian ▁coast line ▁at ▁sites ▁such ▁as ▁Las ▁H ald as ▁which ▁pract iced ▁little ▁or ▁no ▁agricult ure . ▁The ▁oldest ▁radi oc ar bon ▁dates ▁for ▁Las ▁H ald as , ▁about ▁ ▁from ▁Se chin ▁B ajo , ▁are ▁about ▁ 2 4 0 0 ▁BC . ▁ ▁See ▁also ▁▁ ▁List ▁of ▁the ▁oldest ▁buildings ▁in ▁the ▁world ▁ ▁List ▁of ▁oldest ▁buildings ▁in ▁the ▁Amer icas ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Information ▁on ▁discovery ▁ ▁Se chin ▁B ajo ▁project ▁ ▁Category : Arch ae ological ▁sites ▁in ▁Peru ▁Category : T our ist ▁attra ctions ▁in ▁An c ash ▁Region ▁Category : Arch ae ological ▁sites ▁in ▁An c ash ▁Region ▁Category : And e an ▁pre cer am ic ▁Category : And e an ▁civil izations ▁Category : Pre - Col umb ian ▁cult ures ▁Category : History ▁of ▁Peru ▁Category : Arch ae ology ▁of ▁Peru <0x0A> </s> ▁Pr as in oh a ema ▁pre hens ica uda ▁( pre hens ile ▁green ▁tree ▁sk ink ) ▁is ▁a ▁species ▁of ▁sk ink . ▁It ▁is ▁found ▁in ▁Pap ua