Sol Hurok ( Solomon Isaievich Hurok ; born Solomon Izrailevich Gurkov , Russian Соломон Израилевич Гурков ; April 9 , 1888March 5 , 1974 ) was a 20th-century American impresario .
Sol Hurok ( Solomon Isaievich Hurok ; born Solomon Izrailevich Gurkov , Russian Соломон Израилевич Гурков ; April 9 , 1888 -- March 5 , 1974 ) was a world-famous 20th-century American impresario .