By the end of the 1880s, France had established what passed for effective control over the coastal regions of Ivory Coast, and in 1889 Britain recognized French sovereignty in the area. That same year, France named Treich-Laplène titular governor of the territory. In 1893 Ivory Coast was made a French colony, and then Captain Binger was appointed governor. Agreements with Liberia in 1892 and with Britain in 1893 determined the eastern and western boundaries of the colony, but the northern boundary was not fixed until 1947 because of efforts by the French government to attach parts of Upper Volta (present-day Burkina Faso) and French Sudan (present-day Mali) to Ivory Coast for economic and administrative reasons.