The International Thespian Society (ITS), founded in 1929, is an honorary organization for high school and middle school theatre students located at more than 4,600 affiliated secondary schools across America and abroad. The mission of ITS is to honor student achievement in the theatre arts. High school inductees are known as Thespians and junior high/middle school inductees are known as Junior Thespians. ITS is a division of the Educational Theatre Association (EdTA).
— From the International Thespian Society Site: Schooltheatre.org