— cor respond s ▁approximately ▁to ▁the ▁distance ▁between ▁the ▁Earth ▁and ▁the ▁sun ". ▁ ▁Or ion ▁correlation ▁theory ▁ ▁Robert ▁Bau val ▁and ▁Graham ▁Han cock ▁( 1 9 9 6 ) ▁have ▁both ▁suggested ▁that ▁the ▁' ground ▁plan ' ▁of ▁the ▁three ▁main ▁Egypt ian ▁py ram ids ▁was ▁phys ically ▁established ▁in ▁c . ▁ 1 0 , 5 0 0 ▁BC , ▁but ▁that ▁the ▁py ram ids ▁were ▁built ▁around ▁ 2 , 5 0 0 ▁BC . ▁This ▁theory ▁was ▁based ▁on ▁their ▁ ▁initial ▁claims ▁regarding ▁the ▁alignment ▁of ▁the ▁G iza ▁py ram ids ▁with ▁Or ion ▁are ▁later ▁joined ▁with ▁spec ulation ▁about ▁the ▁age ▁of ▁the ▁Great ▁S ph inx . ▁ ▁Advanced ▁technology ▁Linked ▁to ▁the ▁pseudo arch ae ological ▁ancient ▁astr onaut ▁theory ▁and ▁Or ion ▁correlation ▁theory ▁are ▁related ▁claims ▁that ▁the ▁Great ▁Py ram id ▁was ▁constructed ▁by ▁the ▁use ▁of ▁an ▁advanced ▁lost ▁technology . ▁Pro ponents ▁of ▁this ▁theory ▁often ▁link ▁this ▁hypoth et ical ▁advanced ▁technology ▁to ▁extr ater rest ri als ▁but ▁also ▁Atl ante ans , ▁Lem uri ans ▁or ▁a ▁legend ary ▁lost ▁race . ▁Notable ▁pro ponents ▁include ▁Christopher ▁D unn ▁and ▁David ▁H atch er ▁Child ress . ▁Graham ▁Han cock , ▁in ▁his ▁book ▁F inger print s ▁of ▁the ▁God s , ▁assigned ▁the ▁' ground ▁plan ' ▁of ▁the ▁three ▁main ▁Egypt ian ▁py ram ids , ▁in ▁his ▁theory ▁of ▁an ▁advanced ▁pro gen itor