Tostan's mission is to empower African communities to bring about sustainable development and positive social transformation based on respect for human rights. Tostan means "breakthrough" in the West African language of Wolof. Since 1991, Tostan has brought its holistic three year education program to thousands of communities in ten African countries: Burkina Faso, Djibouti, The Gambia, Guinea, Guinea Bissau, Mali, Mauritania, Senegal, Somalia, and Sudan.