I'll start
Throughout my formative years, the women who made the biggest impacts in my life were all Deltas. And at the end of my senior year in high school, my mother was initiated into the local alumnae chapter.
When I went to college there was not a Delta chapter, and there was only one Delta (who had transferred in) on campus. However, there were two other NPHC sororities on campus. Although, my roommate pledged one of these sororities and I made many friends in the other, my heart was already with Delta.
I waited while the lone Delta worked hard to gather other interested ladies (through what we call a city-wide chapter.) After a little over a year and two ships, there were 30+members. At that point I Rushed and was accepted. With my ship there ended up being 50+ members.
However the campus had decided to not recognized any more GLOs so we were not given a house and neither were the Omegas, or Phi Beta Sigmas who also established a presence during this time.
Then our national president (who was the first Black Civil Rights Commissioner) was invited to speak at a forum sponsored by the school's Panhellenic Council. Upon arriving on our campus, she asked why her sorority was not recognized. That started the wheels in motion, the University lifted its ban and the rest of us were recognized. We still were not given houses, because the school did not want to build any more (yes the greek houses were owned by the school, not the resident organizations.)
We then chartered a new chapter specific to the campus.