Burkina Faso and Michel Kafando was reinstated as Acting President. In the general election held on 29 November 2015, Roch Marc Christian Kaboré won in the first round with 53.5% of the vote and was sworn in as President on 29 December 2015. Formerly called the Republic of Upper Volta, the country was renamed "Burkina Faso" on 4 August 1984 by then-President Thomas Sankara. The words "Burkina" and "Faso" both stem from different languages spoken in the country: "Burkina" comes from Mossi and means "upright" showing how the people are proud of their integrity, while "Faso" comes from the Dyula language and
Volta–Congo languages suggested before by Bennet (1983 as cited in Williamson and Blench 2000:17) in the case of the Gur and Adamawa–Ubangi languages, which apart from Ubangian are now linked together as Savannas. Other branches are Kru, Senufo, Kwa, and Benue–Congo, which includes the well-known and particularly numerous Bantu group. The relationship of Kwa to Benue–Congo (named "Benue–Kwa"), and the eastern and western branches of Benue–Congo to each other, remain obscure. The vowel systems of Volta–Congo languages have been the subject of much historical comparative linguistic debate. Casali (1995) defends the hypothesis that the proto-Volta–Congo language originally had a nine- or ten-vowel