French Sudan (Soudan) was a colony in French West Africa that had two separate periods of existence, first from 1890 to 1899, then from 1920 to 1960, when the territory became the independent nation of Mali.
In 1902 the parts of the colony not organized into military districts became Senegambia and Niger, then Upper Senegal and Niger in 1904, then the old name came back in a reorganization of 1920.
When the French Upper Volta was first abolished in 1933 (it was reestablished in 1947), French Sudan picked up some of its provinces.
On 4 April 1959, French Sudan was joined with Senegal to form the Mali Federation, which became fully independent within the French Community on June 20 1960. The federation collapsed on August 20 1960, when Senegal seceded. On 22 September, French Sudan proclaimed itself the Republic of Mali and withdrew from the French Community.