ol ith ic ▁advance ▁of ▁far ming ▁( wave ▁of ▁advance ). ▁According ly , ▁most ▁inhabitants ▁of ▁Ne ol ith ic ▁Europe ▁would ▁have ▁spoken ▁Ind o - Europe an ▁languages , ▁and ▁later ▁migr ations ▁would ▁have ▁replaced ▁the ▁Ind o - Europe an ▁vari eties ▁with ▁other ▁Ind o - Europe an ▁vari eties . ▁ ▁The ▁expansion ▁of ▁agricult ure ▁from ▁the ▁Middle ▁East ▁would ▁have ▁diff used ▁three ▁language ▁families : ▁Ind o - Europe an ▁languages ▁toward ▁Europe , ▁D rav id ian ▁languages ▁toward ▁Pakistan ▁and ▁India , ▁and ▁Af ro asi atic ▁languages ▁toward ▁the ▁Arab ian ▁Pen ins ula ▁and ▁North ▁Africa . ▁React ing ▁to ▁criticism , ▁Ren f rew ▁re vised ▁his ▁proposal ▁to ▁the ▁effect ▁of ▁taking ▁a ▁pron ounced ▁Ind o - H itt ite ▁position . ▁Ren f rew ' s ▁re vised ▁views ▁place ▁only ▁Pre - Pro to - Ind o - Europe an ▁in ▁the ▁ 7 th ▁mill en ni um ▁BC ▁in ▁An atol ia , ▁propos ing ▁as ▁the ▁hom eland ▁of ▁Pro to - Ind o - Europe an ▁proper ▁the ▁B alk ans ▁around ▁ 5 0 0 0 ▁BC , ▁which ▁he ▁explicitly ▁identified ▁as ▁the ▁" Old ▁European ▁culture ", ▁proposed ▁by ▁Mar ija ▁G im but as . ▁He ▁thus ▁still ▁loc ates ▁the ▁original ▁source ▁of ▁the ▁Ind o - Europe an ▁languages ▁in ▁An atol ia ▁around ▁ 7 0 0 0 ▁BC . ▁ ▁Re