Isadora Duncan was without doubt a pioneer in modern dance, but she left no direct heir in dance (despite the "Isadorable"'s efforts). She was emulated but her technique was never systematized. She believed she was reviving ancient Greek dance . . . but it was more her idea of what that dance may have been than an accurate portrayal. (Full disclosure: I was one of the choreographers and dancers involved in the production of Euripides' "The Bacchae" at Princeton in 1976. A joint project of the Art/Archaeology, Classics, and Dance departments, it was performed in the original Greek, with Greek music and dance, so far as we could reconstruct it.)
Ruth St. Denis and Ted Shawn definitely founded a school (even though St. Denis was smitten with "Orientalism") and provided a sound foundation of modern dance technique. But Graham definitely took it a step further - stripping off the exoticism and focusing entirely on the movement itself. That was a significant step away from the Denishawn School. (More disclosure: my mother studied with Graham and with Doris Humphrey and Charles Weidman as well. She was the founder and director of the Atlanta Contemporary Dance Company and the Dancers' Collective of Atlanta.)
You gain no style points by being mean and abusive to people who post interesting articles. I await your curriculum vitae.
Thank You
nopardons is at times a knowledgeable gentleman