▁first ▁of ▁several ▁bal let ▁groups ▁that ▁he ▁started , ▁usually ▁performing ▁at ▁Jordan ▁Hall ▁in ▁the ▁New ▁England ▁Conserv atory . ▁Among ▁other ▁bal lets , ▁he ▁produced ▁Anna ▁Kar en ina , ▁based ▁on ▁Tol sto y ' s ▁novel ▁with ▁music ▁by ▁Sydney ▁C ah an , ▁who ▁was ▁also ▁Russ ak off ' s ▁class ▁pian ist ▁of ▁many ▁years . ▁During ▁World ▁War ▁II ▁Russ ak off ▁worked ▁for ▁the ▁US O . ▁ ▁References ▁ ▁Category : 1 8 9 3 ▁birth s ▁Category : 1 9 8 1 ▁death s ▁Category : Bal let ▁teachers ▁Category : Russ ian ▁male ▁bal let ▁d anc ers ▁Category : American ▁people ▁of ▁Russian - J ew ish ▁descent ▁Category : Im per ial ▁Russian ▁em igr ants ▁to ▁the ▁United ▁States ▁Category : 2 0 th - century ▁bal let ▁d anc ers <0x0A> </s> ▁In ka ▁Mur ata ▁is ▁an ▁arch ae ological ▁site ▁in ▁the ▁Al ti pl ano ▁of ▁Boliv ia . ▁It ▁is ▁located ▁in ▁the ▁O ru ro ▁Department , ▁L itor al ▁Province , ▁Esc ara ▁Municip ality , ▁in ▁the ▁community ▁of ▁Esc ara . ▁The ▁site ▁with ▁the ▁adjacent ▁bur ial ▁to wers ▁( ch ull pa ) ▁was ▁declared ▁a ▁National ▁Historical ▁Monument ▁by ▁Law ▁ 3 8 3 3 ▁on ▁January ▁ 2 3 , ▁ 2 0 0 8 . ▁ ▁References ▁▁ ▁Category : Arch ae ological ▁sites ▁in ▁Boliv ia ▁Category : O ru ro