About 1,000 years ago there was a civilization in the deep rainforest of Nigeria. That kingdom created a 100-mile long moated wall (160 km) that was 70 feet high in places (21 meters), the largest known ancient earthworks in Africa. The wall and ditch, known as Sungbo's Eredo (Sungbo's ditch), may have surrounded the central core of a tribe called the Ijebu, part of the Yoruba clan of tribes. According to local lore, Bilikisu Sungbo was a fabulously wealthy queen who wanted to create a monument to her rule. The Eredo was built, enclosing an area 30 times bigger than Manhattan Island. Sungbo's Eredo is not the only huge ancient structure in West Africa. the jungle is dotted with earthen walls, marking more than 500 settlement boundaries. Archaeologists are studying the ruins to learn more about the people who built them.   You can find more on it on bbc    And your dear Genius, Mr David Duke claims that there was no civilisation in Sub-saharan Africa. A wall? Wow that is amazing, a village of mud and straw huts surrounded by a wall...fantastic. Yes, I have seen ruins of old walls from central Africa that were built to surround their villages of mud and straw huts, I am aware. Big deal? How is this relevant to White Nationalism/White Separatism?? A wall........ :D