The foxtrot is a smooth, progressive dance characterized by long, continuous flowing movements across the dance floor. It is danced to big band (usually vocal) music. The dance is similar in its look to waltz, although the rhythm is different. Developed in the 1910s, the foxtrot reached its height of popularity in the 1930s and remains practiced today.

The dance was premiered in 1914, quickly catching the eye of the husband and wife duo Vernon and Irene Castle, who lent the dance its signature grace and style. The origin of the name of the dance is unclear, although one theory is that it took its name from its popularizer, the vaudeville actor Harry Fox. Two sources, Vernon Castle and dance teacher Betty Lee, credit African American dancers as the source of the foxtrot. Castle saw the dance, which "had been danced by negroes, to his personal knowledge, for fifteen years, at a certain exclusive colored club".

Harry Fox (born Arthur Carringford; May 25, 1882 – July 20, 1959) was an American vaudeville dancer, actor, and comedian.

Vernon and Irene Castle were a husband-and-wife team of ballroom dancers and dance teachers who appeared on Broadway and in silent films in the early 20th century. They are credited with reviving the popularity of modern dancing. Castle was a stage name: Vernon (2 May 1887 – 15 February 1918) was born William Vernon Blyth in Norwich, Norfolk, England. Irene (17 April 1893 – 25 January 1969) was born Irene Foote in New Rochelle, New York.

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