<P> Linguistic evidence points to a relative sequence of population movements into Kenya that begins with the entry into northern Kenya of a possibly Southern Cushitic speaking population around the 3rd millennium BCE . They were pastoralists who kept domestic stock, including cattle, sheep, goat, and donkeys . Remarkable megalithic sites from this time period include the possibly archaeoastronomical site Namoratunga on the west side of Lake Turkana . By 1000 BCE and even earlier, pastoralism had spread into central Kenya and northern Tanzania . </P> <P> In present times the descendants of the Southern Cushitic speakers are located in north central Tanzania near Lake Eyasi . Their past distribution, as determined by the presence of loanwords in other languages, encompasses the known distribution of the Highland Savanna Pastoral Neolithic culture . </P> <P> Beginning around 700 BCE, Southern Nilotic speaking communities whose homelands lay somewhere near the common border between Sudan, Uganda, Kenya and Ethiopia moved south into the western highlands and Rift Valley region of Kenya . </P> <P> The arrival of the Southern Nilotes in Kenya occurred shortly before the introduction of iron to East Africa . The past distribution of the Southern Nilotic speakers, as inferred from place names, loan words and oral traditions includes the known distribution of Elmenteitan sites . </P>

What happened after kenya gained independence from britain