ina ▁wrote ▁that ▁it ▁referred ▁specifically ▁to ▁" the ▁price ▁of ▁something ▁purchased ." ▁ ▁Pre - H is pan ic ▁period ▁ ▁Nom adic ▁pe op les ▁moving ▁south ▁arrived ▁to ▁the ▁J alis co ▁area ▁around ▁ 1 5 , 0 0 0 ▁years ▁ago . ▁Some ▁of ▁oldest ▁evidence ▁of ▁human ▁occupation ▁is ▁found ▁around ▁Z aco al co ▁and ▁Chap ala ▁la kes , ▁which ▁used ▁to ▁be ▁connected . ▁This ▁evidence ▁includes ▁human ▁and ▁animal ▁b ones ▁and ▁tools ▁made ▁of ▁b one ▁and ▁stone . ▁ ▁Other ▁signs ▁of ▁human ▁habit ation ▁include ▁pet rog lyph s ▁and ▁cave ▁paint ings ▁found ▁at ▁Cab o ▁Cor ri entes , ▁San ▁Gabriel , ▁Jes ús ▁María , ▁La ▁Hu erta , ▁Puerto ▁Vall arta , ▁Mi xt lán , ▁Villa ▁Pur ificación , ▁Cas im iro ▁Cast illo , ▁Z ap ot lán ▁el ▁Grande ▁and ▁P ih u amo . ▁ ▁Agricult ure ▁began ▁in ▁the ▁same ▁region ▁around ▁ 7 , 0 0 0 ▁years ▁ago , ▁giving ▁rise ▁to ▁the ▁first ▁permanent ▁settlement s ▁in ▁western ▁Mexico . ▁ ▁Cer am ics ▁began ▁to ▁be ▁produced ▁about ▁ 3 , 5 0 0 ▁years ▁ago ▁for ▁both ▁util itar ian ▁and ▁cer emon ial ▁purposes . ▁The ▁oldest ▁pieces ▁of ▁J alis co ▁area ▁pot tery ▁are ▁called ▁El ▁O pe ño , ▁after ▁an ▁area ▁near ▁Zam ora , ▁Mich o ac án ▁and ▁Cap ach a ▁after ▁an ▁area ▁in ▁Col ima .