The American Circus is a term used to refer to the circus entertainment created by the famous showman P.T. BARNUM in the 19th century. BARNUM was an American entrepreneur who founded the BARNUM & Bailey Circus, which was one of the most popular circuses in the United States. He was known for his innovative and entertaining shows, which featured exotic animals, acrobats, clowns, and other performers. BARNUM's circus was a major success and helped to popularize the circus as a form of entertainment in the United States.