federation 1959–60 of Senegal and the Sudanese Republic
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or formerly Sudanese Republiclandlocked country in western Africa in the western Sahara, Sahel, and Sudan regions with the Tropic of Cancer crossing its northern tip; a republic; before 1958 it constitutedFrench Sudan (a territory of France); capital Bamako area 478,841 square miles (1,240,192 square kilometers), population 18,430,000