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https://en.wikipedia.org/wiki/Lambda_Psi_Delta
Lambda Psi Delta Sorority, Inc. (ΛΨΔ) is an independent, multicultural, community service-based Greek-lettered sorority founded on March 9, 1997.
Lambda Psi Delta (referred to as "LPsiD") was established by a group of women known as the "9 Black Diamonds", on the basis of true sisterhood and community outreach, and is a founding member of the National Multicultural Greek Council.