▁in ▁Arch ae ology ▁and ▁Jewish ▁History ▁in ▁ 1 9 6 2 ▁( with ▁distinction ) ▁and ▁his ▁Ph . ▁D . ▁in ▁ 1 9 6 6 . ▁His ▁Doctor al ▁Th esis ▁on ▁" The ▁Ne o - H itt ite ▁Mon uments , ▁their ▁D ating ▁and ▁Style " ▁was ▁written ▁under ▁the ▁guidance ▁of ▁professor ▁Y ig ael ▁Y adin . ▁Begin ning ▁in ▁ 1 9 6 6 ▁and ▁until ▁his ▁ret irement ▁in ▁ 2 0 0 4 ▁he ▁taught ▁arch ae ology ▁of ▁Israel ▁and ▁H itt ite ▁art ▁at ▁the ▁University ▁of ▁Tel - Av iv , ▁receiving ▁full ▁professor ship ▁in ▁ 1 9 8 5 . ▁ ▁Academ ic ▁and ▁arch ae ology ▁career ▁From ▁ 1 9 6 6 ▁to ▁ 2 0 0 4 , ▁he ▁taught ▁arch ae ology ▁at ▁Tel ▁Av iv ▁University . ▁U ss ish kin ▁is ▁an ▁expert ▁on ▁the ▁Iron ▁Age ▁of ▁the ▁Land ▁of ▁Israel . ▁He ▁has ▁directed ▁and ▁co - direct ed ▁important ▁exc av ations ▁at ▁ ▁L ach ish , ▁Je z re el ▁and ▁Meg id do . ▁ ▁In ▁ 1 9 6 8 – 7 1 ▁he ▁under to ok , ▁with ▁the ▁assistance ▁of ▁his ▁colle ague ▁Gabriel ▁B ark ay , ▁the ▁first ▁complete ▁survey ▁of ▁the ▁Sil wan ▁ne c ropol is ▁rock - cut ▁tomb s ▁of ▁the ▁Jerusalem ▁First ▁Temple ▁period ▁ne c ropol is ▁at op ▁which ▁the ▁village ▁of