Guinea Bissau is a small Portuguese-speaking country in West Africa. It is bordered by the Atlantic in the west, and has borders with Senegal in the north and Guinea in the south, two francophone countries. Before passing under Portuguese domination, the country was part of the Empire of Mali in the Middle Ages. During the colonial period Guinea Bissau was part of a region commonly known as the Slave Coast. Indeed, it was from this part of Africa that many slaves were brought to the plantations of the New World. The country gained its independence from Portugal in 1973, after the carnation revolution during which dictatorial power was overthrown in Lisbon.