che ology . ▁ ▁He ▁was ▁the ▁elder ▁brother ▁of ▁Joseph ▁and ▁Leon ▁Or b eli , ▁and ▁Rus ad an ▁Or b eli ' s ▁ ▁father . ▁ ▁Biography ▁ ▁Born ▁into ▁a ▁medieval ▁noble ▁family ▁in ▁N akh ch ivan , ▁Russian ▁Empire ▁in ▁ 1 8 8 0 . ▁Rub en ▁Or b eli ▁completed ▁his ▁secondary ▁education ▁at ▁a ▁classical ▁g ymnasium ▁in ▁T if lis . ▁Some ▁time ▁later ▁he ▁went ▁to ▁study ▁at ▁S . P eters burg ▁University . ▁In ▁ 1 9 0 3 , ▁after ▁gradu ating ▁the ▁university ▁Rub en ▁Or b eli ▁stayed ▁there ▁to ▁be ▁a ▁professor ▁of ▁juris pr ud ence . ▁From ▁ 1 9 0 4 ▁to ▁ 1 9 0 6 ▁Or b eli ▁worked ▁at ▁society ▁of ▁magistr ates ▁and ▁then ▁he ▁was ▁elected ▁a ▁member ▁of ▁Saint ▁Petersburg ▁State ▁University ' s ▁jur istic ▁society . ▁During ▁this ▁period ▁he ▁was ▁sent ▁to ▁Germany ▁for ▁improvement ▁his ▁knowledge . ▁ ▁In ▁ 1 9 0 6 ▁Rub en ▁Or b eli ▁became ▁a ▁laws ▁magistr ▁of ▁Saint ▁Petersburg ▁State ▁University ' s ▁and ▁a ▁laws ▁doctor ▁of ▁J ene ▁University ' s , ▁also ▁he ▁was ▁author ▁and ▁editor ▁a ▁series ▁of ▁articles ▁in ▁newspaper ▁of ▁Russian ▁tre as ury ▁department ▁from ▁this ▁moment . ▁ ▁In ▁ 1 9 1 8 ▁Rub en ▁became ▁one ▁of ▁the ▁founder ▁Tamb ov ▁State ▁University , ▁where ▁he ▁taught ▁and ▁read ▁lecture . ▁After ▁that ▁he