¹ Phillipson, D. W., ‘The spread of the Bantu language’, Scientific American, ccxxxvi, iv (1977), 106–14.CrossRefGoogle Scholar

² Murdock, G. P., Africa, Its Peoples and Their Culture History (New York, 1959).Google Scholar

³ For further discussion see Huntingford, G. W. B., ‘The Peopling of the Interior of East Africa by its Modern Inhabitants’, in History of East Africa, ed. Oliver, R. and Mathew, G. (Oxford, 1968), i, 58–93.Google Scholar

⁴ Reasons for rejecting the Nilo-Hamitic linguistic classification are detailed in Greenberg, J. H., The Languages of Africa, chapters iii–iv (Bloomington, 1966)Google Scholar. Also see Ehret, C., ‘Cushites and the Highland and Plains Nilotes’, in Zamani: A Survey of East African History, ed. Ogot, B. A. and Kieran, J. A. (Nairobi, 1968), 158–76.Google Scholar

⁵ Ehret, C., ‘Cushitic’ in The Non-Semitic Languages of Ethiopia, ed. Bender, M. L., Ethiopian Monograph series number 5 (East Lansing, 1976), 85–96Google Scholar; idem, Southern Nilotic History (Evanston, 1971).

⁶ Loc. cit.

⁷ Research was funded by the National Science Foundation. We thank the government of Kenya for granting permission to do this research. We are grateful to R. E. F. Leakey, J. C. Onyango-Abuje, D. Phillipson and N. Chittick for facilitating our fieldwork. In addition we thank P. Uland and J. N. Ochieng for their drawings.

⁸ Ehret, , ‘Cushitic’.Google Scholar

⁹ Lynch, B. M., ‘Preliminary report on the 1975–76 excavations at Namoratunga’, Azania, xii (1977), 203–8Google Scholar; idem, ‘The Namoratunga cemetery and rock art sites of NW Kenya: a study of early pastoralist social organization’, Ph.D. dissertation (1978), Michigan State University.

¹⁰ Lynch, B. M. and Robbins, L. H., ‘Animal Brands and the Interpretation of Rock Art in East Africa’, Current Anthropology, xviii, iii (1977), 538–9.CrossRefGoogle Scholar

¹¹ Lynch, B. M. and Donahue, R., ‘A statistical analysis of two East African rock art sites’, Journal of Field Archaeology (in press).Google Scholar

¹² For a description of East African burial cairns see Sutton, J. E. G., The Archaeology of the Western Highlands of Kenya, memoir number 3 of the British Institute in Eastern Africa (Nairobi, 1973). chapter iv.Google Scholar

¹³ Cole, S., The Prehistory of East Africa (revised edition) (New York, 1963).Google Scholar

¹⁴ Hallpike, C., The Konso of Ethiopia: A Study of the Values of a Cushitic People (Oxford, 1973).Google Scholar

¹⁵ In Jensen, E., Im Lande des Gada (Stuttgart, 1936)Google Scholar. Hallpike, op. cit.

¹⁶ Gulliver, P. H., The Family Herds: A Study of two Pastoral Tribes in East Africa, the Jie and Turkana (London, 1955).Google Scholar

¹⁷ Merker, M., Die Masai (Berlin, 1910).CrossRefGoogle Scholar

¹⁸ Jensen, op. cit. Huntingford, G. W. B., ‘The hagiolithic cultures of East Africa’ Eastern Anthropologist, iii, 119–36.Google Scholar

¹⁹ Lynch, B. M. and Robbins, L. H., ‘Namoratunga: the first archaeo-astronomical evidence in subsaharan Africa’ Science, 200 (19 May 1978), 766–8.CrossRefGoogle Scholar

²⁰ Legesse, A., Gada: Three Approaches to the Study of African Society (New York, 1973).Google Scholar

²¹ This date is firmly supported by the archaeo-astronomical evidence mentioned above (see Lynch and Robbins, ‘Namoratunga’, for further details). The alignments agree for the year 300 b.c., but differences are evident when more recent dates are used in the comparison. For this reason, as well as the historical linguistic data bearing on eastern Cushitic prehistory another radiocarbon date from Namoratunga of 1200 ± 100 b.p. (UCLA 21240) is assumed to be in error.

²² Ehret, C., Ethiopians and East Africans: The Problem of Contacts, Nairobi Historical Studies 3 (Nairobi, 1974)Google Scholar; idem, ‘Cushitic’ (1976).

²³ Greenberg, , Languages.Google Scholar

²⁴ The earlier archaeological history of the Nilotic speakers is not known; however, the Lake Turkana basin may have figured prominently as a general homeland for the ancestral Nilotes before they diversified. See Ehret, , Southern Nilotic HistoryGoogle Scholar and Ochieng, W. R., An Outline History of the Rift Valley of Kenya (Nairobi, 1975)Google Scholar, for discussion of this point. It should be noted that the early Holocene fishing peoples who occupied the Lothagam Hill area between 6,000 and 7,000 years ago show some physical similarities to modern Nilotes. This is discussed in Angel, J. L., Phenice, T. W., Robbins, L. H. and Lynch, B. M., Late Stone Age Fishermen of Lothagam, Kenya, Michigan State UniversityGoogle Scholar, Museum Anthropological series (in press). In addition, the overall distribution pattern of early Holocene fishing communities known from wavy line pottery and bone spear or harpoon points corresponds remarkably well to the present distribution of the Nilo-Saharan language group as a whole. See discussion of this in Sutton, J. E. G., ‘The African Aqualithic’, Antiquity, li (1977), 25–35CrossRefGoogle Scholar. Furthermore, some of the earliest domesticated livestock known for eastern Africa has recently been recovered from the east Lake Turkana area (Barthelme, J., personal communicationGoogle Scholar).

²⁵ Jacobs, A. H., ‘Maasai Pastoralism in Historical Perspective’, in Pastoralism in Tropical Africa, ed. Monod, T. (International African Institute, London, 1975).Google Scholar

²⁶ Ehret, , Southern Nilotic HistoryGoogle Scholar. Ochieng, , Rift Valley, p. 28.Google Scholar

²⁷ A complete inventory of sites is presented in Robbins, L. H., The Lopoy Site, Michigan State University Museum, Anthropological Series (in press)Google Scholar. Similar pottery also is known from sites in the Lake Hannington area. See Farrand, W. R., Redding, R. W., Wolpoff, M. H. and Wright, H. T. III, An Archaeological Investigation of the Loboi Plain, Baringo District, Kenya, Technical Reports 4, Research Reports in Archaeology, Contribution 1 (Ann Arbor, 1976).Google Scholar

²⁸ Robbins, L. H., ‘Archaeology in the Turkana District, Kenya’, Science, clxxvi (1972), 359–66.CrossRefGoogle Scholar

²⁹ Robbins, L. H., The Lopoy Site (in press).Google Scholar

³⁰ See Lamphear, J. E., The Traditional History of the Jie of Uganda (London, 1976).Google Scholar

³¹ Ehret, , Southern Nilotic History.Google Scholar

³² Evans-Pritchard, E. E., The Nuer (London, 1940).Google Scholar

³³ Another archaeological component is evident at a different part of the Lopoy site. This is a hunting and butchering camp associated with a distinctive kind of pottery that contrasts with the Turkwell tradition. See Robbins, L. H. and Lynch, B. M., ‘New evidence on the use of microliths from the Lake Turkana Basin, East Africa’, Current Anthropology, xix, iii, 619–20.Google Scholar

³⁴ Ogot, B. A., History of the Southern Luo, 1 (Nairobi, 1967), 41–2.Google Scholar

³⁵ Phillipson, , ‘Bantu language’Google Scholar; idem, The Later Prehistory of Eastern and Southern Africa, chapters 6–8 (London, 1977). Soper, R. C., ‘A general review of the Early Iron Age in the Southern half of Africa’, Azania, vi, 5–37.Google Scholar