Graham has been said to be the one that brought dance into the 20th century. Due to the work of her assistants, Linda Hodes, Pearl Lang, Diane Gray, Yuriko, and others, much of Graham's work and technique have been preserved. They taped interviews of Graham describing her entire technique and videos of her performances. As Glen Tetley told Agnes de Mille, "The wonderful thing about Martha in her good days was her generosity. So many people stole Martha's unique personal vocabulary, consciously or unconsciously, and performed it in concerts. I have never once heard Martha say, 'So-and-so has used my choreography.'" An entire movement was created by her that revolutionized the dance world and created what is known today as modern dance. Now, dancers all over the world study and perform modern dance. Choreographers and professional dancers look to her for inspiration.