The Okiek of northern Tanzania, speakers of a Southern Nilotic Kalenjin tongue, are under heavy influence from Maasai.
A Maa dialect is also spoken by the Baraguyu people of Central Tanzania, in an area known as the Makata Swamp near Morogoro, TZ.
After being defeated by the Purko Maasai in the 1870s, the Kore fled to north-eastern Kenya where they were taken captive by Somali people.
After functioning for years as clients or slaves in Somali households, they were set free by British imperial forces around the end of the 19th century.
Loss of cattle brought them to Lamu island in the second half of the 20th century, where they live nowadays.