Hutu family. Rwanda-Rundi is subdivided into the Kinyarwanda and Kirundi dialects, which have been standardized as official languages of Rwanda and Burundi respectively. It is also spoken as a mother tongue by the Tutsi and Twa. Additionally, many Hutu speak French, the other official language of Rwanda and Burundi, as a lingua franca. The Belgian-sponsored Tutsi monarchy survived until 1959, when Kigeli V was exiled from the colony (then called Ruanda-Urundi). In Burundi, Tutsis, who are the minority, maintained control of the government and military. In Rwanda, the political power was transferred from the minority Tutsi to the majority Hutu. In
Origins of Hutu, Tutsi and Twa the importance of the pastoralist migrations. Still other studies point out that cultural transmission can occur without actual human migration. This raises the question of how much of the changes around the fifteenth and sixteenth centuries was the result of an influx of people as opposed to the existing population being exposed to new ideas. Studies that approach the subject of racial purity are among the most controversial. These studies point out that the pastoralist migrants and pre-migration Rwandans lived side by side for centuries and practiced extensive intermarriage. The notion that current Rwandans can claim exclusively Tutsi or Hutu