ek , ▁Li wy at ▁Hen ▁( Supp lement ▁to ▁vol . ▁v ▁of ▁O ẓ ar ▁ha - S if rut ), ▁p .   3 6 . ▁ ▁Category : Pol ish ▁Orth odox ▁rabb is ▁Category : 1 6 th - century ▁birth s ▁Category : 1 6 1 0 s ▁death s <0x0A> </s> ▁William ▁Ch ester ▁Jordan ▁( born ▁April ▁ 7 , ▁ 1 9 4 8 ) ▁is ▁an ▁American ▁medieval ist , ▁in ▁which ▁field ▁he ▁is ▁a ▁H ask ins ▁Medal ▁winner . ▁He ▁is ▁currently ▁the ▁Day ton - Sto ck ton ▁Professor ▁of ▁History ▁and ▁Chair man ▁of ▁the ▁History ▁Department ▁at ▁Pr inc eton ▁University . ▁ ▁He ▁is ▁also ▁a ▁former ▁Director ▁of ▁the ▁Program ▁in ▁Med ieval ▁Studies ▁at ▁Pr inc eton . ▁Jordan ▁has ▁studied ▁and ▁published ▁on ▁the ▁Cr us ades , ▁English ▁constitution al ▁history , ▁gender , ▁econom ics , ▁J uda ism , ▁and , ▁most ▁recently , ▁church - state ▁relations ▁in ▁the ▁th ir teenth ▁and ▁four teenth ▁centuries . ▁ ▁Biography ▁Jordan ▁earned ▁his ▁Ph D ▁at ▁Pr inc eton , ▁where ▁he ▁was ▁a ▁student ▁of ▁Joseph ▁R . ▁St ray er , ▁in ▁ 1 9 7 3 . ▁He ▁was ▁Director ▁of ▁the ▁Sh el by ▁C ull om ▁Davis ▁Center ▁for ▁Historical ▁Studies ▁from ▁ 1 9 9 4 ▁to ▁ 1 9 9 9 . ▁In ▁ 1 9 9 6 , ▁he ▁won ▁the ▁annual