is , ▁suggesting ▁a ▁historical ▁separation ▁of ▁considerable ▁depth . ▁ ▁Contact , ▁settlement s ▁and ▁dis location ▁ ▁The ▁Jar aw as ▁have ▁a ▁history ▁as ▁traditional ▁h unter - for ager - fish erm en , ▁and ▁have ▁also ▁had ▁re put ations ▁as ▁war riors ▁and ▁un comp rom ising ▁def enders ▁of ▁their ▁territory . ▁Before ▁the ▁ 1 9 th ▁century , ▁the ▁Jar awa ▁hom el ands ▁were ▁located ▁in ▁the ▁sout heast ▁part ▁of ▁South ▁And aman ▁Island ▁and ▁nearby ▁is lets . ▁With ▁the ▁establishment ▁of ▁the ▁initial ▁British ▁settlement , ▁these ▁are ▁sus pected ▁to ▁have ▁been ▁largely ▁dep op ulated ▁by ▁disease ▁shortly ▁after ▁ 1 7 8 9 . ▁The ▁Great ▁And aman ese ▁tribes ▁were ▁similarly ▁dep op ulated ▁by ▁their ▁over use ▁of ▁alco hol ▁and ▁op ium ▁after ▁their ▁introduction , ▁leaving ▁open ▁the ▁western ▁areas ▁which ▁the ▁Jar awa ▁gradually ▁made ▁their ▁new ▁hom eland . ▁The ▁spread ing ▁of ▁op ium ▁and ▁alco hol ▁was ▁to ▁some ▁extent ▁spons ored ▁by ▁the ▁colonial ▁authorities ▁in ▁order ▁to ▁dep op ulate ▁the ▁Jar awa . ▁The ▁imm igration ▁of ▁main land ▁Indian ▁and ▁Kar en ▁( B urm ese ) ▁sett lers , ▁beginning ▁about ▁two ▁centuries ▁ago , ▁acceler ated ▁this ▁process . ▁ ▁Despite ▁this , ▁the ▁Jar aw as ▁managed ▁to ▁surv ive ▁the ▁British ▁enc ro achment ▁of ▁the ▁ 1 9 th ▁and ▁ 2 0 th ▁century , ▁as ▁well ▁as ▁Japanese