The tendency of East African Bantu tribes to borrow cultural features from pastoral or semi-pastoral ‘Nilo-Hamitic’ peoples has often been observed, but thus far only two serious attempts have been made to explain this phenomenon. Herskovits first put forward the idea that the tribes of East Africa formed a ‘cattle complex’ epitomized and shaped by the ‘Nilo-Hamitic’ pastoralists. In a more limited study, LeVine and Sangree concluded that the proclivity of a Bantu tribe to borrow from a ‘Nilo-Hamitic’ group was dependent upon the relative population size of the peoples in question, the success or failure of the Bantu group in defending itself against attack, and the need of the Bantu to ally themselves with a ‘Nilo-Hamitic’ tribe.
The tentative history of relations between the Bantu Kikuyu and the ‘Nilo-Hamitic’ Masai established in this paper suggests that both these theories err. Beginning with the first meeting of the two tribes about 1750, the Masai inflicted great damage on the Kikuyu while both were resident on the plains near Mount Kenya. When the Kikuyu secluded themselves in the forests after about 1800, they began to experience a significant degree of success in warding off the Masai, without any need for allies. Yet borrowing went on almost without interruption throughout both periods.
The actual nature of that borrowing was very different from the process which Herskovits imagined. Rather than being influenced by the way in which cattle functioned in Masai society, the Kikuyu were much impressed with the Masai as militarists, and this is reflected by the fact that the Kikuyu borrowed far more from the Masai military system than from anything relating to cattle.