The Order of the Arrow (OA) was founded by Dr. E. Urner Goodman and Carroll A. Edson in 1915 at the Treasure Island Camp of the Philadelphia Council, Boy Scouts of America. It became an official program experiment in 1922 and was approved as part of the Scouting program in 1934. In 1948 the OA, recognized as the BSA's national brotherhood of honor campers, became an official part of the national camping program of the Boy Scouts of America.