Which organization was established first among Black Greek lettered organizations?

Sigma Pi Phi, also known as "The Boule," holds the distinction of being the first Black Greek lettered organization, established in 1904. It was founded with the intent to provide a space for African American men of integrity and achievement. The organization set a precedent for others to follow, emphasizing professionalism and social networking among its members.

In contrast, the other organizations mentioned were founded later. Alpha Phi Alpha, the first intercollegiate Greek-letter fraternity for African American men, was established in 1906, which makes it the first fraternity but not the first overall organization. Kappa Alpha Psi was founded in 1911, and Sigma Gamma Rho followed in 1922. Therefore, Sigma Pi Phi's establishment predates these other organizations, confirming its historical significance in the context of Black Greek life.