Alpha Kappa Alpha (1908) Delta Sigma Theta (1913) Zeta Phi Beta (1920) Sigma Gamma Rho (1922) Related Posts Why Is a Black Hole Black, Where Do Black Holes Come From, and When Were Black Holes First Discovered? Where Do Black Bears Live and Are all Black Bears Black? What Is a Black Hole, How Are Black Holes Created, and What Would Happen If You Fell Into a Black Hole?