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They developed complex forms of government to organize their society more efficiently, is the major change did the bantu make after their expansion ceased in about 1000 c.e.
The word "Bantu expansion" refers to a hypothetical millennia-long movement pattern of speakers of the original proto-Bantu language family. The main linguistic evidence for this growth has been how strikingly similar the languages of sub-Equatorial Africa are to one another.
It appears likely that the Bantu-speaking people began to spread outside of their original home in West Africa circa 1000 BCE. The western branch may have travelled south along the coast and the main rivers of the Congo system, arriving in central Angola by 500 BCE.
By 500 BCE, pioneering groups had emerged into the southern savannas in what is now the Democratic Republic of the Congo, Angola. Further east, Bantu-speaking populations had reached the vast Central African rainforest.
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