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Recent archaeological research and radiocarbon dates from Eastern Africa1

Published online by Cambridge University Press:  22 January 2009

Gadi G. Y. Mgomezulu
Affiliation:
Department of Antiquities, Malawi

Extract

Research over the past five years or so indicates that in north-western and central Kenya and northern Tanzania pastoralism is much older than previously supposed. Radiocarbon dates from the central Rift valley and the Serengeti plains suggest the presence of domestic cattle by about the sixth millennium b.c. Early pottery traditions in the central Rift valley and around Lake Turkana have been more precisely identified. A continuing research project in the southern Sudan has revealed early pottery with possible northern affinities and rouletted pottery of the first as well as second millennia a.d. In north-western Tanzania, iron would still seem to have been smelted as early as the sixth century b.c. The use of iron, and perhaps of rouletted ware, by pastoral peoples in central Kenya is now dated to the late first millennium a.d. In Malawi, food-production would still seem to have been introduced early in that millennium, but the introduction of cattle has now been dated to the third or fourth century a.d., some centuries earlier than had previously been supposed. In Zambia, the surprisingly early dates for Situmpa pottery have apparently been confirmed. On the east coast, excavations at Hafun, Mogadishu and Manda have enabled more precise dating of the periods during which these ancient ports flourished, while a comprehensive survey programme has refined our knowledge of monumental sites along the Kenya coast.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1981

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Footnotes

1

This review has greatly benefited from help by many people, including researchers who have kindly provided me with scarce articles or new research results in advance of publication: such help is acknowledged in the relevant footnotes. I would also like to thank Dr A. D. Roberts, Dr D. W. Phillipson and Dr N. David for making useful comments on the first draft.

References

2 West-central Africa has been reviewed in this journal by P. de Maret (xviii, 3, 1977); West Africa by D. Calvocoressi and N. David (xx, i, 1979); Northern Africa by A. Close (xxi, 2, 1980); and Southern Africa by M. Hall and J. C. Vogel (xxi, 4, 1980).

3 Earlier reviews of these areas were by B. M. Fagan (x, i, 1969), J. E. G. Sutton (xiii, 2, 1972), R. C. Soper (xv, 2, 1974) and T. Maggs (xviii, 2, 1977). In the present article, brief but important reference is made to Ethiopia, in connection with work in northern Kenya (see p. 439), but the present writer was unable to obtain any information about Uganda.

4 For a discussion of such terms as ‘Earlier Stone Age’, ‘Middle Stone Age’ and ‘Late Stone Age’, see Kleindienst, M. R., ‘Questions of Terminology in regard to the study of Stone Age Industries in Eastern Africa: “Cultural Stratigraphic Units”’, in Bishop, W. W. and Clark, J. D. (eds.), Background to Evolution in Africa (Chicago, 1976), 821859.Google Scholar On the use of ‘Neolithic’, see Onyango-Abuje, J. C., ‘Reflections on Cultural Change and Distribution during the Neolithic period in East Africa’, in Ogot, B. A. (ed.), Hadith, vi (Nairobi, 1976), 1430Google Scholar; and Clark, J. D., ‘The problems of Neolithic culture in Sub-Saharan Africa’, in Bishop and Clark, Background, 601–24.Google Scholar The term ‘Iron Age’ is less problematical, but its subdivisions (‘Early’, ‘Middle’ and ‘Late’) present the same sort of problems as the Stone Age terms.

5 Hall, M. and Vogel, J. C., ‘Some recent radiocarbon dates from Southern Africa’, J. Afr. Hist, xxi, 4 (1980), 431.CrossRefGoogle Scholar

6 Phillipson, D. W., ‘Lowasera’, Azania, xii (1977), 132CrossRefGoogle Scholar; he considers two other dates, GX-4345 and GX-4347, too young for their respective levels.

7 Barthelme, J., ‘Holocene sites north-east of Lake Turkana: a preliminary report’, Azania, xii (1977). 3341.CrossRefGoogle Scholar

8 Barthelme, pers. comm. Shell samples from site GaJj ii gave ‘modern’ dates which obviously do not refer to its occupation (GX-5477, HEL-1275).

9 Barthelme, pers. comm. Two charcoal samples sent to different laboratories (P-2610, SUA-637) were dated to the early second millennium b.c, which Barthelme considers to be more acceptable than a date in the ninth millennium b.c. from a shell sample (SUA-638).

10 Barthelme, , ‘Holocene sites’, 3740.Google Scholar

11 Ibid. 40; pers. comm. As only one date (from a bone sample) is available for this site, it should be regarded with caution, but it receives some confirmation from a site to the south-east, North Horr I, where stone bowls were dated to between the mid-third and mid-second millennia b.c. (c.f. Maggs, , J. Afr. Hist, xviii (1977), 169).Google Scholar

12 Barthelme, pers. comm. The site also yielded a date in the seventh millennium b.c. (SUA-635); Barthelme regards this as too early.

13 Barthelme, pers. comm.

14 Ibid. GX-4641 is a ‘modern’ date.

15 Barthelme, , ‘Holocene sites’, 35Google Scholar; pers. comm. A date in the twelfth millennium b.c. (GX-5478) from Nderati Wells (GaJiI) relates to pre-ceramic microlithic material.

16 D. W. Phillipson, pers. comm.

17 Phillipson considers GX-5157 (G) too recent by a thousand years.

18 Noted by Phillipson and Barthelme.

19 Phillipson, pers. comm.

20 Phillipson, D. W., ‘The excavation of Gobedra rockshelter, Axum: an early occurrence of cultivated finger millet in northern Ethiopia’, Asania, xii (1977), 58, 7981.Google Scholar In a personal communication, Phillipson has referred to Bulliet, R. W., The Camel and the Wheel (Cambridge, Mass., 1975)Google Scholar, for arguments pertaining to the likelihood of an early date for camels in the region. A date for an earlier occupation at Gobedra was reported by Maggs, , J. Afr. Hist, xviii (1977), 168, 186.Google Scholar

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23 Lynch, and Robbins, , ‘Cushitic and Nilotic Prehistory’, 323, n. 21.Google Scholar

24 Ibid. 324–8. The excavators note that the date UCLA-2124K has a large standard deviation, and they are uncertain what is dated by GX-5041. From a nearby site, pottery in the same tradition has been associated with a date in the fifth century a.d. (N-909) already reported (Sutton, , J. Afr. Hist, xiii (1972), 19).Google Scholar There is linguistic evidence that proto-Masaian may have been spoken west of Lake Turkana around the fifth century a.d.: Ehret, C. et al. , ‘Some thoughts on the early history of the Nile-Congo watershed’, Ufahamu, v (1975), 85112Google Scholar; I owe this reference to Dr P. Robertshaw.

25 Other radiocarbon dates from Lokabulo rockshelter sites include GU-1232, which the excavator regards as too young to be trustworthy, and GU-1302 and GU-1238, both of which give too recent an age for the levels from which the samples were collected, probably due to contamination (N. David, pers. comm.).

26 P. Robertshaw, pers. comm.

29 N. David, pers. comm.

30 Other dates from the same site (GU-1231, GU-1236) are from samples thought to be contaminated by charcoal from recent forging and/or smelting activities (David, pers. comm.).

31 Robertshaw, pers. comm.

33 N. David, pers. comm.

34 Angela, Close, ‘Current Research and recent radiocarbon dates from Northern Africa’, J. Afr. Hist, xxi, 2 (1980), 145–67.Google Scholar

35 Jarrige, J. and Meadow, R. H., ‘The antecedents of civilization in the Indus Valley’, Scientific American, no. 243, 2 (1980), 122–33.CrossRefGoogle Scholar

36 Bower, J. R. F., ‘Final report: archaeological study of environment and culture, Serengeti National Park, Tanzania’ (unpublished), 16.Google Scholar

37 Bower, J. R. F. and Nelson, C. M., ‘Early pottery and pastoral cultures of the Central Rift Valley, Kenya’, Man, n.s., xii (1979), 556, 565, n. 3.Google Scholar

38 Anthony, B., ‘Excavations near Elmenteita, Kenya’, Palaeoecology of Africa, iii (1967), 47–8;Google Scholar Isaac, G. L., Merrick, H. V. and Nelson, C. M., ‘Stratigraphic and archaeological studies in the Lake Nakuru Basin, Kenya’, Palaeoecology of Africa, v (1971), 225–32.Google Scholar

39 These dates have already been reported in this series: Sutton, , J. Afr. Hist, xiii (1972), 3, 5, 19Google Scholar; Soper, , J. Afr. Hist, xv (1974), 179.Google Scholar

40 Most of the evidence has been reviewed by Bower and Nelson (‘Early Pottery’); other evidence is cited in articles referred to below. On the basis of finds at Lukenya Hill, east of Nairobi, in 1979, Nelson has argued that cattle were kept there as early as the twelfth or even the twentieth millennium b.c. (cf. Richard, Leakey, The Making of Mankind (London, 1981), 197)Google Scholar; further details are not available at the time of writing.

41 Bower, and Nelson, , ‘Early Pottery’, 555–6.Google Scholar

42 Bower, , ‘Final report’, 34.Google Scholar

43 Onyango-Abuje, J. C., ‘Crescent Island: a preliminary report on excavations at an East African Neolithic site’, Azania, xii (1977), i, 147–59.CrossRefGoogle Scholar

44 Ibid. 156–7; cf. Phillipson, , J. Afr. Hist, xi (1970), 4.Google Scholar

45 Bower, J. R. F., Nelson, C. M., Waibel, A. F. and Wandibba, S., ‘The University of Massachusetts Later Stone Age/Pastoral “Neolithic” comparative study in Kenya: an overview’, Azania, xii (1977), 134.Google Scholar The ‘young age’ from the collagen sample GX-4319 is not an isolated case. Bower and Nelson write: ‘…it has been our general experience that, when dealing with samples from Central Kenya no older than 3000 B.P., collagen usually yields dates between 300 and 1,800 years more recent than apatite, while apatite yields dates closely comparable with determinations from associated wood charcoal, after C-13 corrections have been calculated. Where apatite is obviously in error, it invariably gives a date of “modern”. In samples which lack collagen and are greater than 10,000 years in age, apatite often generates dates 2,500–3,200 years younger than associated wood charcoal’ (Bower and Nelson, ‘Early Pottery’, 559).

46 Bower, et al., ‘Later Stone Age’, 134.Google Scholar

47 There are marked discrepancies between dates run on apatite and collagen both for the Kansyore-type ware (GX-4421 (A), GX-4421 (C)) and for the Narosura ware (GX-4468 (A), GX-4468 (C)). For a possible explanation see footnote 45 and source quoted there.

48 Bower, et al., ‘Later Stone Age’, 131Google Scholar; Bower, and Nelson, , ‘Early Pottery’, 555Google Scholar; the date GX-4464 (A) is too recent for the associated cultural material.

49 Bower, et al., ‘Later Stone Age’, 131, 137.Google Scholar

50 Ibid. 140–1; Bower, and Nelson, , ‘Early pottery’, 556.Google Scholar

51 Bower, et al. ‘Later Stone Age’, 131, 139.Google Scholar

52 Ibid. 133–4.

53 Ibid. 129, 137.

54 Ibid. 121–5; Bower, and Nelson, , ‘Early pottery’, 555–6.Google Scholar

55 Bower, et al., ‘Later Stone Age’, 140, 145.Google Scholar

56 Neville, Chittick, ‘Excavations at Deloraine Farm, Rongai’, Azania, xiv (1979), 162–3; pers. comm.Google Scholar

57 Bower, et al., ‘Later Stone Age’, 133, 144Google Scholar; Bower, and Nelson, , ‘Early pottery’, 562.Google Scholar A ‘modern’ date, GX-4420 (C), is unsound (Ibid. 559).

58 Bower, et al., ‘Later Stone Age’, 131, 144.Google Scholar

59 Bower, and Nelson, , ‘Early pottery’, 564.Google Scholar

60 Bower, et al., ‘Later Stone Age’, 134Google Scholar; Bower, and Nelson, , ‘Early pottery’, 555.Google Scholar

61 Ibid. 564.

62 Robert, Soper, ‘Iron Age archaeology and traditional history: Embu, Mbeere and Chuku areas of Central Kenya’, Azania, xiv (1979), 3159.Google Scholar

63 Masao, F. T., The Later Stone Age and the Rock Paintings of Central Tanzania (Wiesbaden, 1979), 194.Google Scholar At Kandaga, GX-3678 (last 200 years) dates microlithic material; at Kirumi Isumbira, GX-3682 comes from a disturbed context.

64 Sutton, J. E. G., ‘Engaruka and its Waters’, Azania, xiii (1978), 3770.CrossRefGoogle Scholar

65 Phillipson, , J. Afr. Hist, xi (1970), 89.Google Scholar

66 Sutton, , ‘Engaruka’, 38.Google Scholar

67 Ibid. 59.

68 Sutton, , J. Afr. Hist, xiii (1972), 89.Google Scholar

69 Schmidt, Peter R., Historical Archaeology: a Structural Approach in an African Culture (Westport, Conn., 1978), 191.Google Scholar

70 Prof. Schmidt has kindly provided these dates in advance of their publication.

71 E.g. Roland Oliver's review of Schmidt's, Historical Archaeology in J. Afr. Hist, xx (1979), 289–90Google Scholar; van Noten, F., ‘The Early Iron Age in the interlacustrine region: the diffusion of iron technology’, Azania, xiv (1979), 73.Google Scholar

72 The dates for Ise Dura were reported by Calvocoressi, and David, , J. Afr. Hist, xx (1979), ii.Google Scholar

73 See Onyango-Abuje, J. C., ‘A contribution to the study of the Neolithic in East Africa with particular reference to Nakuru-Naivasha basins’ (unpublished, 1977)Google Scholar; Schmidt, , Historical Archaeology, 296Google Scholar; Mgomezulu, G. G. Y., ‘Food production: the beginnings in the Linthipe/Changoni area of Dedza District, Malawi’ (Ph.D. thesis, University of California: Berkeley, 1978).Google Scholar

74 Bower, and Nelson, , ‘Early pottery’, 565.Google Scholar

75 Phillipson, D. W., ‘Some Iron Agesitesin the lower Tana valley’, Azania, xiv (1979), 155–60;CrossRefGoogle Scholar pers. comm.

76 H. N. Chittick, pers. comm.; see also Neville, Chittick, ‘An archaeological reconnaissance in the Horn: the British Somali Expedition, 1975’, Azania, xi (1976), 117–33.Google Scholar

77 H. N. Chittick, pers. comm.; he thinks that this radiocarbon determination is a ‘further example of a sample from a low latitude which gives a result which is too early (cf. Kilwa and Manda)’.

78 Chittick, pers. comm.

79 British Institute in Africa, Eastern, Report for 1978–9 (London, 1980), 34Google Scholar; cf. Neville Chittick, Excavations at Manda, 1978 (Memoir no. 8 of the British Institute in Eastern Africa: Nairobi, in press).

80 I am grateful to the Executive Director of the National Museums of Kenya, Mr R. E. Leakey, who kindly gave me copies of two unpublished reports by Dr T. H. Wilson on research by the Museums along the coast between 1978 and 1980.

81 Wilson, T. H., ‘The monumental architecture and archaeology north of the Tana River’ (11. 1978), 82–8).Google Scholar

82 Wilson, T. H., ‘The monumental architecture and archaeology of the central and southern Kenya Coast’ (02. 1980), 5477.Google Scholar

83 Ibid. 977–8.

84 Ibid. 43–5.

85 Phillipson, D. W., The Later Prehistory of Eastern and Southern Africa (London, 1977) 146.Google Scholar Dates for cattle in the third century a.d. from Makwe in eastern Zambia, and in the second to fifth centuries a.d. from Broederstroom, west of Pretoria, further cast doubt on Phillipson's theory: see Mgomezulu, ‘Food Production’ Huffman, T. N., ‘African Origins’, S. Afr.J. Science, lxxv (1979), 233–7Google Scholar; but also Hall, and Vogel, , J. Afr. Hist, xxi (1980), 441, n. 58.Google Scholar

86 Robinson, K. R., The Iron Age of Northern Malawi: an Archaeological Reconnaissance (Malawi Antiquities Department, publication no. 20: forthcoming); this expands on the preliminary report by Robinson in J. Afr. Hist, vii, 2 (1966).Google Scholar

87 Robinson, Iron Age, and pers. comm.

88 Phillipson, , J. Afr. Hist, xi (1970), 6.Google Scholar

89 Robinson, Iron Age, and pers. comm.

90 Mgomezulu, ‘ Food Production.’

91 The full pottery sequence as known at present consists of Nkope, Kapeni, Mawudzu, Nkudzi and modern Chewa.

92 H. de Villiers, ‘Report on human skeletal remains from the Linthipe/Changoni project, site DZ/26’, in Mgomezulu, ‘Food Production’.

93 Mgomezulu, ‘Food Production’.

94 Prof. J. D. Clark, pers. comm.; see also Mgomezulu, ‘Food Production’.

95 Ibid., Robinson, K. R. and Sandelowsky, B., ‘The Iron Age of northern Malawi: recent work’, Azania, in (1968), 122–4Google Scholar; Robinson, K. R., Iron Age Sites in the Dedza District of Malawi (Malawi Antiquities Department publication, no. 16: Zomba, 1975), 1215.Google Scholar

96 Mgomezulu, ‘Food Production.’

97 Robinson, K. R., The Nkhota-kota Lakeshore and marginal areas, Malawi: an archaeological reconnaissance (Malawi Antiquities Department publication, no. 19: Limbe, 1979).Google Scholar

98 Ibid. 13.

99 The research was directed by the present writer; analysis of the material recovered is in progress.

100 Longwe ware was first described by Robinson, K. R., Iron Age Occupation North and East of the Mulanje Plateau, Malawi (Malawi Antiquities Department publication, no. 17: Limbe, 1977).Google Scholar Pta-1798 was communicated to me by Robinson in August, 1978. Mr Yusuf Juwayeyi has informed me that Longwe pottery has been observed in the Malowa/Milolongwe area, some 30 km west of the type site. The Longwe dates from this area are awaited with interest. The Kasuku Village site (JkJe4) is the westernmost site for Longwe ware.

101 Maggs, , J. Afr. Hist, xviii, 2 (1977), 176.Google Scholar

102 N. M. Katanekwa, pers. comm.

103 Idem, ‘Some Early Iron Age sites from the Machili Valley of south-western Zambia’, Azania, xiii (1978), 149–50.Google Scholar

104 Ibid. 159 n., and pers. comm.

105 Katanekwa, , ‘Some Early Iron Age sites’, 158.Google Scholar

106 Katanekwa, pers. comm.

107 J. H. Robertson, pers. comm.

108 Idem, ‘Zambia’, Nyame Akutna, xii (1978), 45–6.Google Scholar

109 F. B. Musonda, pers. comm.