The Encyclopædia Britannica notes,"Republic of Madagascar , Malagasy Madagasikara or Repoblikan'i Madagasikara , French Madagascar or République de Madagascar country lying off the southeastern coast of Africa. It occupies the fourth largest island in the world, after Greenland, New Guinea, and Borneo. Located in the southwestern Indian Ocean, it is separated from the African coast by the 250-mile- (400-kilometre-) wide Mozambique Channel."
From the site:
The written history of Madagascar began in the seventh century A.D., when Arabs established trading posts along the northwest coast. European contact began in the 1500s, when Portuguese sea captain Diego Dias sighted the island after his ship became separated from a fleet bound for India. In the late 17th century, the French established trading posts along the east coast. From about 1774 to 1824, it was a favorite haunt for pirates, including Americans, one of whom brought Malagasy rice to South Carolina.
Beginning in the 1790s, Merina rulers succeeded in establishing hegemony over the major part of the island, including the coast. In 1817, the Merina ruler and the British governor of Mauritius concluded a treaty abolishing the slave trade, which had been important in Madagascar's economy. In return, the island received British military and financial assistance. British influence remained strong for several decades, during which the Merina court was converted to Presbyterianism, Congregationalism, and Anglicanism.
The British accepted the imposition of a French protectorate over Madagascar in 1885 in return for eventual control over Zanzibar (now part of Tanzania) and as part of an overall definition of spheres of influence in the area. Absolute French control over Madagascar was established by military force in 1895-96, and the Merina monarchy was abolished.