ikal ▁region ▁of ▁Southern ▁Si ber ia ▁( near ▁the ▁modern - day ▁Mong ol ian ▁border ) ▁since ▁the ▁Ne ol ith ic ▁era . ▁▁ ▁Consider ing ▁the ▁north - western ▁Even ks ▁Vas ile v ich ▁claims : ▁" The ▁origin ▁of ▁the ▁Even ks ▁is ▁the ▁result ▁of ▁complex ▁processes , ▁different ▁in ▁time , ▁involving ▁the ▁mixing ▁of ▁different ▁ancient ▁ab original ▁tribes ▁from ▁the ▁north ▁of ▁Si ber ia ▁with ▁tribes ▁related ▁in ▁language ▁to ▁the ▁Tur ks ▁and ▁Mong ols . ▁The ▁language ▁of ▁these ▁tribes ▁took ▁preced ence ▁over ▁the ▁languages ▁of ▁the ▁ab original ▁population ". ▁Element s ▁of ▁more ▁modern ▁Even k ▁culture , ▁including ▁con ical ▁tent ▁dwell ings , ▁b one ▁fish - l ures , ▁and ▁bir ch - b ark ▁boats , ▁were ▁all ▁present ▁in ▁sites ▁that ▁are ▁believed ▁to ▁be ▁Ne ol ith ic . ▁From ▁Lake ▁Ba ikal , ▁“ they ▁spread ▁to ▁the ▁Am ur ▁and ▁Ok hot sk ▁Sea … the ▁L ena ▁Bas in … and ▁the ▁Y en ise y ▁Bas in ”. ▁ ▁Contact ▁with ▁Rus si ans ▁ ▁In ▁the ▁ 1 7 th ▁century , ▁the ▁Russian ▁emp ire ▁made ▁contact ▁with ▁the ▁Even ks . ▁C oss acks , ▁who ▁served ▁as ▁a ▁kind ▁of ▁“ border - guard ” ▁for ▁the ▁ts ar ist ▁government , ▁im posed ▁a ▁fur ▁tax ▁on ▁the ▁Si ber ian ▁tribes . ▁The ▁C oss acks ▁explo ited ▁the ▁Even k