Sigma Gamma Tau was founded on the campus of Purdue University in West Lafayette, Indiana, on February 28, 1953, "to offer appropriate recognition to persons of superior scholarship, outstanding character, and professional achievement in the field of Aeronautical Engineering." The new society was formed by the merger of two existing societies, Tau Omega, founded in 1927 at the University of Oklahoma, and Gamma Alpha Rho, founded in 1945 at Rensselaer Polytechnic Institute.
The name of the society was selected by combining the Greek letter Sigma, indicating sum, with Gamma and Tau from the initial letters of the parent organizations. Since its modest beginnings in 1953, the society has grown from 14 to about 50 collegiate chapters (~40 active chapters) and from 1,900 to over 30,000 initiated members.
Texas A&M University was one of the original universities to have a chapter in 1953.
Website for Nationals: http://sgtnational.org/