Iota_Phi_Theta
Plenty to dig in the "African-American Greek letter sororities and fraternities".
Today we visit [Iota_Phi_Theta], one of the nine NPHC [National Pan-Hellenic Council] organizations, sometimes referred to as the "Divine Nine".
From here, the web spreads to "blood" related orgs; links below. This rabbit hole is deep and wide.
When some members of these Greek sororities/fraternities realize this is not their thing…trouble. Hazing is a big issue.
https://en.wikipedia.org/wiki/Iota_Phi_Theta
https://en.wikipedia.org/wiki/DKMS
https://en.wikipedia.org/wiki/National_Pan-Hellenic_Council
https://en.wikipedia.org/wiki/Bone_Marrow_Donors_Worldwide
https://en.wikipedia.org/wiki/United_Network_for_Organ_Sharing
https://en.wikipedia.org/wiki/Gift_of_Life_Marrow_Registry
https://en.wikipedia.org/wiki/Health_Resources_and_Services_Administration
https://en.wikipedia.org/wiki/St._Jude_Children%27s_Research_Hospital
https://en.wikipedia.org/wiki/National_Marrow_Donor_Program
https://en.wikipedia.org/wiki/African-Caribbean_Leukaemia_Trust
https://web.archive.org/web/20170421064111/https://www.vanityfair.com/style/2012/05/coty-inc-and-dkms-goes-star-studded-to-save-kids-lives
https://www.gg-magazine.com/en/2015/11/die-lebensretterin/
https://web.archive.org/web/20170421064111/https://www.vanityfair.com/style/2012/05/coty-inc-and-dkms-goes-star-studded-to-save-kids-lives
https://www.bbc.com/news/uk-wales-37286318