1856-1924

American architect who strongly influenced modern U.S. architecture and architects, especially Frank Lloyd Wright, with his building designs. Sullivan is best known for his unique skyscraper style emphasizing the vertical thrust of buildings using steel or iron frame skeleton construction. Among his most distinguished buildings are the Auditorium Building (1866-89) and Carson Pirie Scott department store building (1899-1904) in Chicago and the Wainwright Building in St. Louis (1890-91).