Bukusu emerge as a distinct group on the slopes of Mount Elgon contested
The Bukusu are the largest sub-group of the Luhya, Bantu speakers who settled the southern and eastern foothills of Mount Elgon, which they call Masaba. Historians think they became distinct from the wider Luhya population only in the late 18th century, after successive waves of Bantu migration into the region. Bukusu oral tradition instead traces the people to a first ancestor, Mwambu, said to have been created at a place called Mumbo.