The Hamitic hypothesis reached its apogee in the work of C. G. Seligman, who argued in his book The Races of Africa (1930) that:
Apart from relatively late Semitic influence... the civilizations of Africa are the civilizations of the Hamites, its history is the record of these peoples and of their interaction with the two other African stocks, the Negro and the Bushmen, whether this influence was exerted by highly civilized Egyptians or by such wider pastoralists as are represented at the present day by the Beja and Somali... The incoming Hamites were pastoral 'Europeans' – arriving wave after wave – better armed as well as quicker witted than the dark agricultural Negroes."[2][9]
Seligman asserted that the Negro race was essentially static and agricultural, but that the wandering Hamitic "pastoral Caucasians" had introduced most of the advanced features found in central African cultures, including metal working, irrigation and complex social structures
Hamites = horners berbers egyptians