Can any member of Sigma Gamma Rho Sorority Inc. please help me?

My mother is a member of Sigma Gamma Rho Sorority Inc. and now that I'm in college I notice that the hand gesture is different now that it was in 1978 when she became a member. I also notice that it is now the AKA sign. Can someone please explain to me what happened? I actually asked my coach who happens to be an... show more My mother is a member of Sigma Gamma Rho Sorority Inc. and now that I'm in college I notice that the hand gesture is different now that it was in 1978 when she became a member. I also notice that it is now the AKA sign. Can someone please explain to me what happened? I actually asked my coach who happens to be an AKA why this is and she has no idea what I am talking about.
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