The Tugen are part of the Kalenjin community and are found in Baringo County. In accordance to the 2009 Kenya Population and Housing Census, the Tugen are about 140,489 people and are further subdivided into Arror, Samors, Lembus and Endorois. The Tugen are cattle keepers and the cow occupies a central part in their culture which is used as food (meat and milk), currency and dowry.
A BTL survey undertaken in 2010 revealed that although the Lembus dialect can comfortably use the Kalenjin Bible, the Samor and Arror dialects cannot use it.
Bible Translation & Literacy is a Christian organization that was established in 1981 to facilitate Bible translation.