Off the top of my head they started out as ml-mzt with black nationalism emphasized in their educationals, and were plagued with sexism and racist characteristics (this is to say the early party was chauvinistic against women in the Party and towards other ethnicities that liked what they were doing and wanted to join under their banner). As the party grew and matured from a small localized outfit to a national party organization they corrected the chauvinistic tendencies through correcting sexist tendencies by educating or ejecting members that refused to correct themselves, shifting from an exclusionist black nationalism line for pan-ethnic collaboration towards socialism (precursor to what Jackson coined "rainbow coalition") and more or less started blooming from a rag-tag team trying to protect their own into a revolutionary party that could compete with CPUSA for the vanguard position of the American proletariat.