Burkina Faso is located in Sub-Saharan Africa in a region of the world referred to as the Sa-hel. The country was formerly known as Upper Volta. Burkina has a population of over 15 million. The people of Burkina Faso are known as the Burkinabe, and their primary language is French. Burkina is listed as one of the world's poorest countries and has one of the highest illiteracy rates in the world. One in three children die before the age of ten primarily from malnutrition and water born illness, but also struggle to deal with AIDS, Malaria, and other treatable diseases.