Delta Sigma Theta Sorority, Inc. (ΔΣΘ) is a historically African American sorority. The organization was founded by college-educated women dedicated to public service with an emphasis on programs that assist the African American community. Delta Sigma Theta was founded on January 13, 1913 by twenty-two women at Howard University in Washington, D.C. Membership is open to any woman, regardless of religion, race, or nationality. Women may apply to join through undergraduate chapters at a college or university or through an alumnae chapter after earning a college degree.

The National Pan-Hellenic Council (NPHC) is a collaborative umbrella council composed of nine historically African American fraternities and sororities, commonly called the Divine Nine, and also referred to as Black Greek Letter Organizations (BGLOs). The NPHC was formed as a permanent organization on May 10, 1930, on the campus of Howard University, in Washington, D.C., with Matthew W. Bullock as the active Chairman and B. Beatrix Scott as Vice-Chairman. NPHC was incorporated under the laws of the State of Illinois in 1937.