The Harvard-Radcliffe Orchestra is a collegiate symphony orchestra comprised of Harvard students and based in Cambridge, Massachusetts. Founded in March 1808 as the Pierian Sodality, the Orchestra is the oldest symphony orchestra in the United States. The band contains over 100 members and is the largest orchestra at Harvard University. The group plays four season concerts every year at Harvard’s Sanders Theatre, regularly participates in the annual Arts First arts festival at Harvard, and sometimes gives concerts for children. Its alumni board is still known as the Pierian Sodality of 1808.