Which chapter is referred to as "Mother Pearl"?

The chapter referred to as "Mother Pearl" is known as the Alpha Chapter of Omega Psi Phi Fraternity, Inc. Established on November 17, 1911, at Howard University in Washington, D.C., the Alpha Chapter holds a unique status as the first chapter of the fraternity. This designation as "Mother Pearl" signifies its foundational role in the establishment and development of Omega Psi Phi, serving as the birthplace of the organization's values, mission, and principles. The Alpha Chapter has been instrumental in influencing the growth of the fraternity and shaping the legacy of brotherhood and service that is central to Omega Psi Phi's identity. Its pioneering spirit and historical significance make it a cherished element within the fraternity's narrative.