Some fraternity members are members of the Freemasons, Delta Sigma Theta, Omega Psi Phi, and Alpha Eta Rho. The Freemasons is a fraternal organization that has been around since the late 1600s and is dedicated to promoting morality, brotherly love, and charity. Delta Sigma Theta is a public service sorority founded in 1913 at Howard University. Omega Psi Phi is a fraternity founded in 1911 at Howard University and is dedicated to promoting scholarship, leadership, and service. Alpha Eta Rho is a professional aviation fraternity founded in 1929 at the University of Southern California. All of these organizations are dedicated to providing service to their communities and promoting fellowship among their members.