▁the ▁banks ▁of ▁the ▁N ile ." ▁ ▁By ▁the ▁ 2 0 th ▁century , ▁the ▁A si atic ▁race ▁theory ▁and ▁its ▁various ▁off sh o ots ▁were ▁abandoned ▁but ▁were ▁su pers eded ▁by ▁two ▁related ▁theories : ▁the ▁euro cent ric ▁Ham it ic ▁hypothesis , ▁as ser ting ▁that ▁a ▁C au cas ian ▁ra cial ▁group ▁moved ▁into ▁North ▁and ▁East ▁Africa ▁from ▁early ▁pre history ▁subsequently ▁bringing ▁with ▁them ▁all ▁advanced ▁agricult ure , ▁technology ▁and ▁civil ization , ▁and ▁the ▁D yn astic ▁race ▁theory , ▁propos ing ▁that ▁Mes op ot am ian ▁inv aders ▁were ▁responsible ▁for ▁the ▁d yn astic ▁civil ization ▁of ▁Egypt ▁( c . ▁ 3 0 0 0 ▁BC ). ▁In ▁sharp ▁contrast ▁to ▁the ▁A si atic ▁race ▁theory , ▁neither ▁of ▁these ▁theories ▁propos es ▁that ▁C au cas ians ▁were ▁the ▁ind igen ous ▁inhabitants ▁of ▁Egypt . ▁ ▁C au cas ian ▁/ ▁Ham it ic ▁hypothesis ▁In ▁ 1 8 4 4 , ▁Samuel ▁George ▁Mort on ▁wrote ▁that ▁the ▁N ile ▁valley ▁" was ▁originally ▁pe op led ▁by ▁a ▁branch ▁of ▁the ▁C au cas ian ▁race ", ▁and ▁acknowled ged ▁that ▁Neg ro es ▁were ▁present ▁in ▁ancient ▁Egypt ▁but ▁claimed ▁they ▁were ▁either ▁capt ives ▁or ▁servants . ▁George ▁Gl idd on ▁( 1 8 4 4 ) ▁wrote : ▁" The ▁Egypt ians ▁were ▁white ▁men , ▁of ▁no ▁dark er ▁h ue ▁than ▁a ▁pure ▁Arab ,