Because their profession brought them into contact (literally) with many men, prostitutes were able to provide crucial testimony to frontier law enforcers. The courtroom statements of these women frequently helped convict the guilty & exonerate the innocent. The lasting benefit of all such testimony helped law enforcers overcome widespread skepticism of their ability to fairly dispense justice on the chaotic American frontier.
Isadora Duncan. Inventor of American modern dance. Shifted the focus of dance from the stifling emphasis on feet to the soulful, expressive, liberated solar plexus. Made dance more about freedom and emotions and introduced movement inspired by nature, athleticism, and folk dance, among other things. Muse to many artists across many genres.