From her small town beginnings in the Jewish Poland of 1872, Helena Rubinstein grew a cosmetics empire that spanned four continents.  By her death in 1965 at 92, this self-made magnate of beauty had not only amassed a world-class collection of Western, African and Oceanic art, but transformed how millions of women thought about themselves.  The Jewish Museum’s gorgeously-mounted exhibit, Helena Rubinstein: Beauty is Power, is aptly titled.