 The pastoralist Iraqw and Datoga were both forced to migrate into the area by the expansion of the Maasai, the former in the 19th century and the latter in the 1910s.The Isanzu, a Bantu farming people, began living just south of Hadzaland around 1850.The Hadza also have contact with the Maasai and the Sukuma west of Lake Eyasi.