Ruth St. Denis was an American pioneer of modern dance, introducing eastern ideas into the art and paving the way for other women in dance. She was inspired by the Delsarte advocate Genevieve Stebbins. St. Denis was the co-founder in 1915 of the American Denishawn School of Dancing and Related Arts. She taught notable performers including Martha Graham and Doris Humphrey. In 1938, she founded the pioneering dance program at Adelphi University. She published several articles on spiritual dance and the mysticism of the body.

Modern dance is a broad genre of western concert or theatrical dance which includes dance styles such as ballet, folk, ethnic, religious, and social dancing; and primarily arose out of Europe and the United States in the late 19th and early 20th centuries. It was considered to have been developed as a rejection of, or rebellion against, classical ballet, and also a way to express social concerns like socioeconomic and cultural factors.