▁sign ▁of ▁the ▁z od iac ▁to ▁each ▁tribe ▁in ▁his ▁rend ition ▁of ▁the ▁B less ing ▁of ▁Jacob . ▁ ▁H ellen istic ▁and ▁Roman ▁era ▁▁ ▁The ▁Bab yl onian ▁star ▁catalog s ▁entered ▁Greek ▁astronom y ▁in ▁the ▁ 4 th ▁century ▁BC , ▁via ▁E ud ox us ▁of ▁C n id us . ▁Bab yl onia ▁or ▁Chal de a ▁in ▁the ▁H ellen istic ▁world ▁came ▁to ▁be ▁so ▁identified ▁with ▁ast ro log y ▁that ▁" Ch al de an ▁wisdom " ▁became ▁among ▁Gree ks ▁and ▁Rom ans ▁the ▁syn onym ▁of ▁div ination ▁through ▁the ▁plan ets ▁and ▁stars . ▁H ellen istic ▁ast ro log y ▁derived ▁in ▁part ▁from ▁Bab yl onian ▁and ▁Egypt ian ▁ast ro log y . ▁Hor os cop ic ▁ast ro log y ▁first ▁appeared ▁in ▁P to le ma ic ▁Egypt ▁( 3 0 5 ▁BC – 3 0 ▁BC ). ▁The ▁D end era ▁z od iac , ▁a ▁relief ▁d ating ▁to ▁ca . ▁ 5 0 ▁BC , ▁is ▁the ▁first ▁known ▁dep iction ▁of ▁the ▁classical ▁z od iac ▁of ▁twelve ▁signs . ▁ ▁The ▁earliest ▁ext ant ▁Greek ▁text ▁using ▁the ▁Bab yl onian ▁division ▁of ▁the ▁z od iac ▁into ▁ 1 2 ▁signs ▁of ▁ 3 0 ▁equal ▁degrees ▁each ▁is ▁the ▁An ap hor icus ▁of ▁Hy ps icles ▁of ▁Alexand ria ▁( fl . 1 9 0 BC ). ▁Part icular ly ▁important ▁in ▁the ▁development