It was Great Britain. You can see it through the fact that English is still spoken there. Southern Rhodesia is today's Zimbabwe and Northern Rhodesia is today's Zambia.
What do mean be more Specific
W.E.B. Du Bois aws a co- founder of the N.A.A.C.P., the National Association for the Advancement of the People. He urged African Americans to fight gor equal rights. As an activist he was known as the "Father of Pan-Africanism". His inclination came more left winged and joined the American Labour.