The area was inhabited by the Mpongwe people before the French acquired the land in 1839. It was later an American Christian mission, and a slave resettlement site, before becoming the chief port of the colony of French Equatorial Africa. By the time of Gabonese independence in 1960, the city was a trading post and minor administrative centre with a population of 32,000. Since 1960, Libreville has grown rapidly and now is home to one-third of the national population.