Politics of Benin century until the colonial period, the Kingdom of Dahomey (whose borders encompassed more than present day Benin) was ruled by an "Oba". The French were the colonial power from 1892 to 1960, when independence was finally achieved. Between 1960 and 1972, a series of military coups in Benin (known until 1975 as the Republic of Dahomey) brought about many changes of government. The last of these brought Major Mathieu Kérékou to power as the head of a regime professing strict Marxist-Leninist principles. The Revolutionary Party of the People of Benin (PRPB) remained in complete power until the beginning of the
Dahomey Gap 90 million years. Murphy and Collier, in their analysis of the Aplocheiloid fishes show a split in the African species which they attribute to the presence of an epicontinental sea between the late Cenomanian and early Eocene. The Dahomey Gap has existed in its present form for only about four thousand years. For most of the Quaternary, dry conditions due to a much colder Atlantic Ocean (aided by extensive cold currents from ice sheets in Europe and North America) have meant that the present-day forest zone has supported very little or no rainforest. In interglacial periods, however, rainfall throughout West