"Smile and Style: An Ethnographic Analysis of ISU's Gamma Phi Circus" by Sarah Carlson"Gamma Phi Circus of Illinois State University is the oldest collegiate circus in the United States, and one of only two still in existence. Founded in 1926 by Clifford “Pop” Horton, a gymnastics instructor, it began as a small group of men performing human pyramids and tumbling at sporting events. By 1931, it was an actively performing college circus troupe. Now, with a rich, 82 year performance history, Gamma Phi has roughly 70 performers and holds highly attended performances every April, in conjunction with a rigorous year-round practice schedule."