▁migr ated ▁to ▁the ▁Central ▁American ▁region ▁from ▁South ▁America ▁around ▁ 3 , 0 0 0 ▁years ▁ago , ▁making ▁it ▁the ▁oldest ▁civil ization ▁in ▁El ▁Salvador . ▁Gu anc as co ▁is ▁the ▁annual ▁ceremony ▁by ▁which ▁Len ca ▁communities , ▁usually ▁two , ▁gather ▁to ▁establish ▁reci pro cal ▁oblig ations ▁in ▁order ▁to ▁confirm ▁peace ▁and ▁friendship . ▁Que le pa ▁is ▁a ▁major ▁site ▁in ▁eastern ▁El ▁Salvador . ▁Its ▁pot tery ▁shows ▁strong ▁similar ities ▁to ▁cer am ics ▁found ▁in ▁central ▁western ▁El ▁Salvador ▁and ▁the ▁May a ▁high lands . ▁The ▁Len ca ▁sites ▁of ▁Y ar um ela , ▁Los ▁Nar an jos ▁in ▁H ond uras , ▁and ▁Que le pa ▁in ▁El ▁Salvador , ▁all ▁contain ▁evidence ▁of ▁the ▁Us ul ut án - style ▁cer am ics . ▁▁ ▁The ▁C aca opera ▁people ▁are ▁an ▁ind igen ous ▁people ▁in ▁El ▁Salvador ▁who ▁are ▁also ▁known ▁as ▁the ▁Mat ag al pa ▁or ▁Ul ua . ▁C aca opera ▁people ▁spoke ▁the ▁C aca opera ▁language , ▁a ▁Mis um al pan ▁language . ▁C aca opera ▁is ▁an ▁ext inct ▁language ▁belonging ▁to ▁the ▁Mis um al pan ▁family , ▁formerly ▁spoken ▁in ▁the ▁department ▁of ▁Mor az án ▁in ▁El ▁Salvador . ▁It ▁was ▁closely ▁related ▁to ▁Mat ag al pa , ▁and ▁slightly ▁more ▁dist antly ▁to ▁Sum o , ▁but ▁was ▁ge ograph ically ▁separated ▁from ▁other ▁Mis um al pan ▁languages . ▁▁ ▁The