I know this is a little off topic, but I'm shocked to find out that NPC and NPHC sororities don't "mingle" anymore. Back when I was an active, Delta Zeta and Alpha Kappa Alpha cosponsored a lecture series on women's health every year. (The slogan was cute... "Two sisterhoods sharing two colors and one goal: Educating women"). All GLO's participated in Greek Week, regardless of their ethnic status, and every fraternity participated in our Greek God contest.
Wow... times have changed
