“Loie Fuller (1862–1928) was a pioneer of both modern dance and theatrical lighting techniques. Fuller combined her choreography with silk costumes illuminated by multi-coloured lighting of her own design.”
Would this modern dance pioneer be better known had she not fallen in step with the Nazis? While her early choreography was not to official taste, she was sufficiently in step with the early Volk-inspired philosophy of the Reich to receive a commission to choreograph a mass Olympic Youth dance for the 1936 Berlin Olympic Games. http://www.theguardian.com/stage/2013/may/22/mary-wigman-german-modern-dance-pioneer
While living in Utah, I learned about Isadora Duncan. She was a revolutionary dancer at the turn of the century. She danced barefoot, and wore mostly scarves when she performed her free-formed, fluid dances. At the time when proper ballet was the trend, she turned pop culture on its head and changed the expression of dance forever.