Angolan Americans are Americans of Angolan descent or Angolan immigrants. According to estimates, by the year 2000 there were 1,642 people descended from Angolan immigrants in the United States. However, the number of Angolan Americans is difficult to determine and may be much higher as many African-Americans could be descendants of Angolan slaves. In 1644, most of the 6,900 slaves bought on the African coast to clear the forests, lay roads, build houses and public buildings, and grow food came from the established stations in Angola.