Who choreographed Ragtime?

Ragtime is a musical with music by Stephen Flaherty, lyrics by Lynn Ahrens, and a book by Terrence McNally. It is based on the 1975 novel by E. L. Doctorow.

Set in the early 20th century, Ragtime tells the story of three groups in the United States: African Americans, represented by Coalhouse Walker Jr., a Harlem musician; upper-class suburbanites, represented by Mother, the matriarch of a white upper-class family in New Rochelle, New York; and Eastern European immigrants, represented by Tateh, a Jewish immigrant from Latvia. The show also incorporates historical figures such as Harry Houdini, Evelyn Nesbit, Booker T. Washington, J. P. Morgan, Henry Ford, Stanford White, Harry Kendall Thaw, Admiral Peary, Matthew Henson, and Emma Goldman.