Demographics of Kenya explained

Place:Kenya
Size Of Population:51,044,355 (2022 est.)
Growth:2.12% (2022 est.)
Nation:Kenyan
Birth:26.39 births/1,000 population
Death:5.01 deaths/1,000 population
Net Migration:-0.19 migrant(s)/1,000 population
Infant Mortality:27.86 deaths/1,000 live births
Life:69.69 years
Life Male:67.98 years
Life Female:71.43 years
Fertility:3.29 children

The demography of Kenya is monitored by the Kenyan National Bureau of Statistics. Kenya is a multi-ethnic state in East Africa. Its total population was at 47,558,296 as of the 2019 census.[1]

A national census was conducted in 1999, although the results were never released. A new census was undertaken in 2009, but turned out to be controversial, as the questions about ethnic affiliation seemed inappropriate after the ethnic violence of the previous year.[2] Preliminary results of the census were published in 2010.[3]

Kenya's population was reported as 47.6 million during the 2019 census compared to 38.6 million inhabitants 2009, 30.7 million in 1999, 21.4 million in 1989, and 15.3 million in 1979.[4] This was an increase of a factor of 2.5 over 30 years, or an average growth rate of more than 3 percent per year. The population growth rate has been reported as reduced during the 2000s, and was estimated at 2.7 percent (as of 2010), resulting in an estimate of 46.5 million in 2016.[5]

Ethnic groups

Kenya has a very diverse population that includes most major ethnic, racial and linguistic groups found in Africa. Bantu, Cushitic and Nilotic populations together constitute around 99% of the nation's inhabitants.[6] People from Asian or European heritage living in Kenya are estimated at around 1% of the population.

Bantus are the single largest population division in Kenya. Most Bantu are farmers. Some of the prominent Bantu groups in Kenya include the Kikuyu, the Kamba, the Luhya, the Kisii, the Meru, and the Mijikenda.

In Kenya's last colonial census of 1962, population groups residing in the territory included European, African and Asian individuals.[7] According to the Kenya National Bureau of Statistics, Kenya had a population of 47,564,296 by 2019. The largest native ethnic groups were the Kikuyu (8,148,668), Luhya (6,820,000), Kalenjin (6,358,113), Luo (5,066,966), Kamba (4,663,910), Somalis (2,780,502), Kisii (2,703,235), Mijikenda (2,488,691), Meru (1,975,869), Maasai (1,189,522), and Turkana (1,016,174). Foreign-rooted populations included Asians (90,527), Europeans (42,868) with Kenyan citizenship, 26,753 without, and Kenyan Arabs (59,021).[8] The number of ethnic categories and sub-categories recorded in the census has changed significantly over time, expanding from 42 in 1969 to more than 120 in 2019.[9]

Bantu peoples

See main article: Bantu peoples. Bantus are the single largest population division in Kenya. The term Bantu denotes widely dispersed but related peoples that speak south-central Niger–Congo languages. Originally from Cameroon-Nigeria border regions, Bantus began a millennium-long series of migrations referred to as the Bantu expansion that first brought them south into East Africa about 2,000 years ago.

Most Bantu are farmers. Some of the prominent Bantu groups in Kenya include the Kikuyu, the Kamba, the Luhya, the Kisii, the Meru, and the Mijikenda. The Swahili people are descended from Wangozi Bantu peoples that intermarried with Arab immigrants.[10] [11]

The Kikuyu, who are one of the biggest tribes in Kenya, seem to have assimilated a significant number of Cushitic speakers. Evidence from their Y DNA shows that 18% of Kikuyu carry the E1b1b Y DNA.[12]

Nilotic peoples

See main article: Nilotic peoples. Nilotes are the second-largest group of peoples in Kenya. They speak Nilo-Saharan languages and went south into East Africa from Western Asia and North Africa by way of South Sudan.[10] Most Nilotes in Kenya are historically pastoralists. The Nilotes are divided into the river lake Nilotes and the highland nilotes. These divisions are related to where they occupied after they relocated to Kenya. Where the Luo are affiliated with the river lake occupancy as they can be found near Lake Victoria. The Kalenjin along others are affiliated with the highland occupancy as they are found around the highland areas of the country. The most prominent of these groups include the Luo, the Maasai, the Samburu, the Iteso, the Turkana, and the Kalenjin.[10] Similar to the Bantu, some Nilotic systems of governance (such as Ibinda of the Nandi[13]) bear similarities with those of their Cushitic neighbors (such as the Gada system[14] of the Oromo).[15]

Cushitic people

See main article: Cushitic peoples. The Cushitic people form a small minority of Kenya's population. They speak languages belonging to the Afroasiatic family and originally came from Ethiopia and Somalia. However, some large ethnic Somali clans are native to the area that used be known as NFD in Kenya. These people are not from Somalia but share the same ethnicity as the majority in Somalia. Most of them are herdsmen and have almost entirely adopted Islam.[16] Cushites are concentrated in the northernmost North Eastern Province, which borders Somalia.[17]

The Cushitic people are divided into two groups: the Southern Cushites and the Eastern Cushites.

An entrepreneurial community, they established themselves in the business sector, particularly in Eastleigh, Nairobi.[21]

Indians

See main article: Indians in Kenya. Asians living in Kenya are descended from South Asian migrants. Significant Asian migration to Kenya began between 1896 and 1901 when some 32,000 indentured labourers were recruited from British India to build the Kenya-Uganda Railway.[22] The majority of Kenyan Asians hail from the Gujarat and Punjab regions.[23] The community grew significantly during the colonial period, and in the 1962 census Asians made up a third of the population of Nairobi and consisted of 176,613 people across the country.[23]

Since Kenyan independence large numbers have emigrated due to race-related tensions with the Bantu and Nilotic majority. Those that remain are principally concentrated in the business sector, and Asians continue to form one of the more prosperous communities in the region.[17] According to the 2019 Census, Kenyan Asians number 47,555 people, while Asians without Kenyan citizenship number 42,972 individuals.[8] In 2017, they were officially recognised as the 44th tribe of Kenya.[24]

Europeans

See main article: White people in Kenya. Europeans in Kenya are primarily the descendants of British migrants during the colonial period. There is also a significant expat population of Europeans living in Kenya. Economically, all Europeans in Kenya belong to the middle- and upper-middle-class. Nowadays, only a small minority of them are landowners (livestock and game ranchers, horticulturists and farmers), with the majority working in the tertiary sector: in air transport, finance, import, and hospitality. This is apart from isolated individuals such as anthropologist and conservationist Richard Leakey, F.R.S., who died in 2022. Kenyan-Europeans have completely retreated from Kenyan politics, and are no longer represented in public service and parastatals, from which the last remaining staff from colonial times retired in the 1970s.[25] According to the 2019 Census, Kenyan Europeans number 42,868 people, while Europeans without Kenyan citizenship number 26,753 individuals. 0.3% of the population of Kenya is either from Asia or Europe.[8]

Arabs

Arabs form a small but historically important minority ethnic group in Kenya. They are principally concentrated along the coast in cities such as Mombasa, Malindi, Lamu, and Nairobi. A Muslim community, they primarily came from Oman and Hadhramaut in Yemen, and are engaged in trade. Arabs are locally referred to as Washihiri or, less commonly, as simply Shihiri in the Bantu Swahili language, Kenya's lingua franca.[17] According to the 2019 Census, Kenyan Arabs number 59,021 people.[8]

Languages

See main article: article and Languages of Kenya. Kenya's various ethnic groups typically speak their mother tongues within their own communities. The two official languages, English and Swahili, serve as the main lingua franca between the various ethnic groups. English is widely spoken in commerce, schooling and government.[26] Peri-urban and rural dwellers are less multilingual, with many in rural areas speaking only their native languages.[27]

According to Ethnologue, there are a total of 69 languages spoken in Kenya. Most belong to two broad language families: Niger-Congo (Bantu branch) and Nilo-Saharan (Nilotic branch), which are spoken by the country's Bantu and Nilotic populations, respectively. The Cushitic and Arab ethnic minorities speak languages belonging to the separate Afro-Asiatic family, with the Indian and European residents speaking languages from the Indo-European family.[28]

Population

According to, the total population was in compared to 6,077,000 in 1950, and around 1,700,000 in 1900. The proportion of children below the age of 15 in 2010 was 42.5%, 54.9% between the ages of 15 and 65, and 2.7% was 65 years or older.[29] Worldometers estimates the total population at 48,466,928 inhabitants, a 29th global rank.[30]

YearTotal populationPopulation percentage
aged 0–14aged 15–64aged 65+
19506 077 000
19556 980 000
19608 105 000
19659 505 000
197011 252 000
197513 486 000
198016 268 000
198519 655 000
199023 447 000
199527 426 000
200031 254 000
200535 615 000
201040 513 000
201947 564 296

Population by Sex and Age Group (Census 24.VIII.2009):[31]

Age GroupMaleFemaleTotal%
Total19 192 45819 417 63938 610 097100
0–43 000 4392 938 8675 939 30615.38
5–92 832 6692 765 0475 597 71614.50
10–142 565 3132 469 5425 034 85513.04
15–192 123 6532 045 8904 169 54310.80
20–241 754 1052 020 9983 775 1039.78
25–291 529 1161 672 1103 201 2268.29
30–341 257 0351 262 4712 519 5066.53
35–391 004 3611 004 2712 008 6325.20
40–44743 594732 5751 476 1693.82
45–49635 276637 4691 272 7453.30
50–54478 346477 860956 2062.48
55–59359 466352 497711 9531.84
60–64295 197298 581593 7781.54
65-69183 151207 612390 7631.01
70-74160 301179 000339 3010.88
75-7999 833118 675218 5080.57
80+159 125224 576383 701 0.99
Age group MaleFemaleTotalPercent
0–148 398 4218 173 45616 571 87742.92
15–6410 191 62710 514 32020 705 94753.63
65+602 410729 8631 332 2733.45
Unknown11 4789 60821 0860.05

Population by Sex and Age Group (Census 24.VIII.2019) (The figure for both sexes includes intersex persons.):[32]

Age GroupMaleFemaleTotal%
Total23 544 37224 011 270 47 557 157100
0–43 005 4962 985 4845 991 12812.60
5–93 116 1013 084 4456 200 71913.04
10–143 209 5443 136 1496 345 86413.34
15–192 686 4762 599 905 5 286 53511.12
20–242 112 7772 335 0524 448 0379.35
25–291 839 2562 014 5463 853 9558.10
30–341 698 3541 871 6253 570 1337.51
35–391 347 9621 301 6242 649 6795.57
40–441 156 9321 101 8672 258 8614.75
45–49916 166869 7401 785 9573.76
50–54662 864645 463 1 308 3712.75
55–59546 852571 0001 117 8782.35
60–64419 362450 447869 8371.83
65-69311 281346 756658 0521.38
70-74235 929278 507514 4531.08
75-79119 265163 799283 0710.60
80-8482 909120 944203 8560.43
85-8943 94869 635113 5870.24
90-9419 22535 86655 0950.12
95-999 76818 23328 0010.06
100+3 90510 18314 0880.03
Age group MaleFemaleTotalPercent
0–149 331 1419 206 07818 537 71138.98
15–6413 387 00113 761 26927 149 24357.09
65+826 2301 043 9231 870 2033.93

Population by province in 2019 census

[33]

Province2019
Kenya (country total) 47,564,296
Nairobi (capital city) 4,397,073
Central 5,482,239
Coast 4,329,474
Eastern 6,821,049
North Eastern 2,490,073
Nyanza 6,269,579
Rift Valley 12,752,966
Western 5,021,843

Fertility and Births (Demographic and Health Surveys)

Total Fertility Rate (TFR) (Wanted Fertility Rate) and Crude Birth Rate (CBR):[34]

YearTotalUrbanRural
CBR TFRCBR TFRCBR TFR
19778.1
19847.7
19896.74.57.1
199335.85.40 (3.4)35.13.44 (2.5)35.95.80 (3.7)
199834.64.70 (3.5)33.63.12 (2.6)34.75.16 (3.8)
200337.54.9 (3.6)35.33.3 (2.6)38.15.4 (3.9)
2008–2009 (census)34,84.6 (3.4)32.52.9 (2.5)35.35.2 (3.7)
201430.53.9 (3.0)31.03.1 (2.6)30.34.5 (3.4)
202227.73.4 (2.9)30.12.7 (2.5)26.64.0 (3.3)

Fertility data as of 2014 (DHS Program):[35]

RegionTotal fertility ratePercentage of women age 15–49 currently pregnantMean number of children ever born to women age 40–49
4.3 6.6 5.5
6.4 12.0 7.1
3.4 4.6 4.7
2.8 4.8 3.7
4.5 7.0 5.5
4.7 6.7 6.1
4.3 5.9 5.8
2.7 6.8 3.1

UN population projections

Numbers are in thousands. UN medium variant projections[29]

Vital statistics

Registration of vital events is in Kenya not complete. The Population Department of the United Nations prepared the following estimates.[36]

PeriodPopulation per yearLive births per yearDeaths per yearNatural change per yearCBR*CDR*NC*TFR*IMR*Life expectancy
(in years)
19505 712 000285,000 167,000 118,000 49.528.920.67.33162.238.90
19515 836 000299,000 166,000 133,000 50.728.122.67.36161.239.09
19525 975 000313,000 168,000 146,000 51.827.824.17.39159.438.95
19536 122 000328,000 163,000 165,000 52.826.326.57.42152.240.32
19546 282 000342,000 159,000 183,000 53.725.028.77.45145.341.69
19556 461 000356,000 156,000 200,000 54.323.830.57.48138.942.96
19566 657 000372,000 154,000 219,000 55.022.732.37.53132.944.12
19576 871 000388,000 149,000 239,000 55.521.334.27.59127.345.83
19587 104 000403,000 148,000 255,000 55.620.435.27.60122.246.88
19597 343 000414,000 146,000 268,000 55.419.535.87.62117.547.77
19607 609 000428,000 145,000 283,000 55.218.636.57.63113.248.68
19617 894 000446,000 144,000 302,000 55.517.937.67.72109.449.53
19628 201 000465,000 144,000 321,000 55.617.238.47.80106.050.22
19638 526 000482,000 145,000 338,000 55.516.638.87.86103.150.81
19648 868 000500,000 146,000 354,000 55.216.139.17.92100.651.33
19659 227 000521,000 148,000 373,000 55.315.739.68.0398.751.70
19669 608 000539,000 150,000 388,000 54.915.339.68.0697.052.10
19679 997 000555,000 153,000 402,000 54.415.039.48.0595.552.46
196810 405 000572,000 155,000 417,000 53.814.639.38.0494.052.78
196910 823 000589,000 157,000 433,000 53.414.239.28.0392.453.17
197011 256 000606,000 158,000 447,000 52.713.838.98.0290.853.58
197111 690 000625,000 159,000 466,000 52.413.339.18.0089.154.26
197212 107 000639,000 158,000 481,000 51.712.838.97.9887.255.01
197312 539 000652,000 158,000 495,000 51.012.338.77.9485.355.68
197412 982 000668,000 160,000 507,000 50.412.138.37.9183.355.63
197513 426 000685,000 162,000 523,000 50.011.838.27.8881.255.83
197613 878 000704,000 164,000 540,000 49.811.638.27.8479.055.90
197714 327 000722,000 164,000 559,000 49.411.238.27.8076.756.49
197814 828 000744,000 164,000 580,000 49.210.838.47.7574.456.94
197915 347 000766,000 163,000 604,000 49.010.438.67.6872.157.72
198015 894 000787,000 162,000 626,000 48.610.038.67.6070.158.50
198116 480 000816,000 151,000 665,000 48.59.039.57.5168.261.17
198217 092 000838,000 156,000 683,000 48.18.939.17.4066.560.95
198317 731 000860,000 159,000 701,000 47.58.838.77.2664.961.01
198418 408 000888,000 164,000 724,000 47.38.838.67.1263.760.80
198519 099 000913,000 170,000 743,000 46.98.838.16.9862.860.58
198619 806 000941,000 178,000 763,000 46.68.837.86.8562.460.22
198720 516 000966,000 185,000 781,000 46.28.837.36.6862.460.04
198821 248 000982,000 195,000 788,000 45.49.036.46.5162.959.54
198922 004 000998,000 205,000 793,000 44.59.235.46.3263.959.04
199022 772 0001,008,000 216,000 793,000 43.59.334.26.1365.258.61
199123 553 0001,019,000 228,000 791,000 42.59.533.05.9466.858.01
199224 284 0001,029,000 242,000 787,000 41.79.831.95.7568.357.26
199325 028 0001,044,000 255,000 789,000 41.110.031.05.5769.456.62
199425 756 0001,062,000 266,000 796,000 40.610.230.45.4570.156.27
199526 512 0001,088,000 280,000 809,000 40.410.430.05.3770.155.62
199627 245 0001,112,000 292,000 821,000 40.210.529.75.3169.755.16
199727 987 0001,139,000 303,000 836,000 40.110.729.45.2668.754.82
199828 742 0001,174,000 313,000 861,000 40.210.729.55.2567.454.53
199929 533 0001,199,000 321,000 878,000 40.010.729.35.1865.654.50
200030 398 0001,232,000 329,000 903,000 39.910.729.35.1463.654.41
200131 306 0001,271,000 336,000 934,000 40.010.629.45.0961.354.51
200232 295 0001,298,000 339,000 959,000 39.610.329.35.0258.954.99
200333 265 0001,318,000 337,000 981,000 39.010.029.14.9156.555.60
200434 270 0001,347,000 334,000 1,013,000 38.79.629.14.8354.056.36
200535 314 0001,380,000 328,000 1,052,000 38.59.129.44.7851.357.34
200636 372 0001,414,000 323,000 1,091,000 38.38.729.54.7548.858.22
200737 479 0001,450,000 322,000 1,128,000 38.18.529.64.7246.558.87
200838 595 0001,471,000 317,000 1,154,000 37.58.129.54.6543.859.61
200939 779 0001,476,000 312,000 1,164,000 36.67.728.84.5141.760.37
201040 950 0001,471,000 314,000 1,157,000 35.47.627.94.3740.260.65
201142 086 0001,461,000 317,000 1,144,000 34.27.426.84.2239.061.05
201243 185 0001,451,000 326,000 1,125,000 33.27.525.74.0938.161.12
201344 267 0001,440,000 332,000 1,008,00032.17.424.73.9537.061.39
201445 318 0001,436,000 335,000 1,101,000 31.37.324.03.8436.061.82
201546 346 0001,452,000 345,000 1,107,000 31.07.423.63.8034.961.89
201647 357 0001,457,000 352,000 1,105,000 30.47.323.13.7233.862.16
201748 432 0001,458,000 357,000 1,100,000 29.87.322.53.6433.062.48
201849 464 0001,460,000 365,000 1,094,000 29.27.321.93.5832.062.68
201950 443 0001,451,000 372,000 1,079,000 28.57.321.23.4731.162.94
202051 460 0001,456,000 388,000 1,068,000 28.07.520.53.4030.462.68
202152 511 0001,468,000 427,000 1,041,000 27.78.119.63.3429.861.43
202254 027 0001,488,000 423,000 1,065,000 27.57.819.73.3028.062.10
  • CBR = crude birth rate (per 1000); CDR = crude death rate (per 1000); NC = natural change (per 1000); IMR = infant mortality rate per 1000 births; TFR = total fertility rate (number of children per woman)

Other population statistics

Demographic statistics according to the World Population Review in 2022.

The following demographic are from the CIA World Factbook unless otherwise indicated.

Population

55,864,955 (2022 est.)

47,564,296 (2019 census)

Age structure

0-14 years: 38.71% (male 10,412,321/female 10,310,908)

15-24 years: 20.45% (male 5,486,641/female 5,460,372)

25-54 years: 33.75% (male 9,046,946/female 9,021,207)

55-64 years: 4.01% (male 1,053,202/female 1,093,305)

65 years and over: 3.07% (2020 est.) (male 750,988/female 892,046)

0-14 years: 39.03% (male 9,474,968 /female 9,416,609)

15-24 years: 19.61% (male 4,737,647 /female 4,752,896)

25-54 years: 34.27% (male 8,393,673 /female 8,193,800)

55-64 years: 4% (male 894,371 /female 1,040,883)

65 years and over: 3.08% (male 640,005 /female 852,675) (2019 est.)

Population growth rate

2.12% (2022 est.) Country comparison to the world: 38th

1.57% (2018 est.) Country comparison to the world: 67th

Birth rate

26.39 births/1,000 population (2022 est.) Country comparison to the world: 43rd

22.6 births/1,000 population (2018 est.) Country comparison to the world: 66th

Death rate

5.01 deaths/1,000 population (2022 est.) Country comparison to the world: 196th

6.7 deaths/1,000 population (2018 est.) Country comparison to the world: 137th

Total fertility rate

3.23 children born/woman (2023 est.) Country comparison to the world: 46th

3.29 children born/woman (2022 est.) Country comparison to the world: 44th

2.81 children born/woman (2018 est.) Country comparison to the world: 59th

Median age

total: 20 years. Country comparison to the world: 195th

male: 19.9 years

female: 20.1 years (2020 est.)

total: 20 years. Country comparison to the world: 191st

male: 19.9 years

female: 20.2 years (2018 est.)

Mother's mean age at first birth

20.3 years (2014 est.)

note: median age at first birth among women 25-29

Contraceptive prevalence rate

59.7% (2019)

61.6% (2016)

Net migration rate

-0.19 migrant(s)/1,000 population (2022 est.) Country comparison to the world: 111st

-0.2 migrant(s)/1,000 population (2017 est.) Country comparison to the world: 109th

Dependency ratios

total dependency ratio: 78.3 (2015 est.)

youth dependency ratio: 73.7 (2015 est.)

elderly dependency ratio: 4.6 (2015 est.)

potential support ratio

21.7 (2015 est.)

Urbanization

urban population: 29% of total population (2022)

rate of urbanization: 4.09% annual rate of change (2020-25 est.)

urban population: 27% of total population (2018)[37]

rate of urbanization: 4.23% annual rate of change (2015-20 est.)

Life expectancy at birth

total population: 69.69 years. Country comparison to the world: 175th

male: 67.98 years

female: 71.43 years (2022 est.)

total population: 64.6 years (2018 est.)

male: 63.1 years (2018 est.)

female: 66.1 years (2018 est.)

Education expenditures

5.1% of GDP (2020) Country comparison to the world: 60th

Literacy

definition: age 15 and over can read and write (2015 est.)

total population: 81.5%

male: 85%

female: 78.2% (2018)

total population: 78% (2015 est.)

male: 81.1% (2015 est.)

female: 74.9% (2015 est.)

School life expectancy (primary to tertiary education)

total: 5 years (1970) to 11 years (2009)[38]

male: 11 years (2009)

female: 11 years (2009)

Health

Infant mortality was estimated at 27 deaths/1,000 live births as of 2020.Life expectancy was estimated at 62 years as of 2020.[39]

According to 2008–09 Kenyan government survey, total fertility was 4.6, contraception usage among married women was 46 percent.[40] Total fertility rate has decreased 4.91 children per woman (2006 estimate), to 4.38 (2010 estimate).Literacy (age 7 and over) was estimated at 85.1% in 2003 (male: 90.6%, female: 79.7%).

Major infectious diseases

degree of risk: very high (2020)

food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever

vectorborne diseases: malaria, dengue fever, and Rift Valley fever

water contact diseases: schistosomiasis

animal contact diseases: rabies

Religion

See main article: article and Religion in Kenya.

CIA World Factbook estimate:[5]

%

See also

References

Attribution:

Further reading

External links

Notes and References

  1. Web site: Kenya Population (2019). Daily Nation. 4 November 2019.
  2. http://news.bbc.co.uk/2/hi/8217637.stm Kenya begins contentious census
  3. https://www.bbc.co.uk/news/world-africa-11143914 Kenya defends tribal census figures
  4. Web site: Kenya: Provinces, Counties, Cities, Towns, Urban Centers – Population Statistics in Maps and Charts. Citypopulation.de. 7 November 2017.
  5. Web site: CIA World Fact Book – Kenya . CIA – The World Fact Book. 7 November 2017.
  6. Book: Asongu . J. J.. Marr . Marvee. Doing Business Abroad: A Handbook for Expatriates. 2007. Greenview Publishing Co.. 978-0-9797976-3-7. 12 & 112.
  7. Web site: Kenya Population Census 1962, Appendix 1. Kenya National Bureau of Statistics. Government of Kenya. 31 July 2017.
  8. Web site: 2019 Kenya Population and Housing Census Volume IV: Distribution of Population by Socio-Economic Characteristics . 24 March 2020 . Kenya National Bureau of Statistics.
  9. Balaton-Chrimes. Samantha. Who are Kenya's 42(+) tribes? The census and the political utility of magical uncertainty. Journal of Eastern African Studies. 2020. 15. 43–62 . 10.1080/17531055.2020.1863642. 1753-1055. 231681524. free.
  10. A. Okoth & A. Ndaloh, Peak Revision K.C.P.E. Social Studies, (East African Publishers), p.60-61.
  11. S. Wandibba et al, Social Studies STD 6, (East African Publishers), p.45-47.
  12. Henn . Brenna M. . Gignoux . Christopher . Lin . Alice A. . Oefner . Peter J. . Shen . Peidong . Scozzari . Rosaria . Cruciani . Fulvio . Tishkoff . Sarah A. . Mountain . Joanna L. . Underhill . Peter A. . Y-chromosomal evidence of a pastoralist migration through Tanzania to southern Africa . Proceedings of the National Academy of Sciences of the United States of America . 2008-08-05 . 105 . 31 . 10693–10698 . 10.1073/pnas.0801184105 . 18678889 . 2504844 . 2008PNAS..10510693H . free .
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