Question: Cyril Briggs was dedicated to advancing what  worldwide intellectual movement that aims to encourage and strengthen bonds of solidarity between all people of African descent
Sentence (from "Black separatism"): Black separatism is a subcategory of black nationalism, stemming from the idea of racial solidarity, and implies that blacks should organize themselves on the basis of their common experience of oppression as a result of their blackness, culture, and African heritage.
Relevant evidence: No