 During the Bantu Migrations from about 1000 BC to AD 1000, Ubangian-speaking people spread eastward from Cameroon to Sudan, Bantu-speaking people settled in the southwestern regions of the CAR, and Central Sudanic-speaking people settled along the Ubangi River in what is today Central and East CAR.Production of copper, salt, dried fish, and textiles dominated the economic trade in the Central African region.The territory of modern Central African Republic is known to have been settled from at least the 7th century  on by overlapping empires, including the Kanem-Bornu, Ouaddai, Baguirmi, and Dafour groups based on the Lake Chad region and along the Upper Nile.