Suriname was inhabited as early as the fourth millennium BC by various indigenous peoples, including the Arawaks, Caribs, and Wayana. Europeans arrived in the 16th century, with the Dutch establishing control over much of the country's current territory by the late 17th century. During the Dutch colonial period, Suriname was a lucrative source of sugar, its plantation economy driven by African slave labor and, after abolition of slavery in 1863, indentured servants from Asia. In 1954, Suriname became one of the constituent countries of the Kingdom of the Netherlands. On 25 November 1975, Suriname left the Kingdom to become an independent state, but continues to maintain close economic, diplomatic, and cultural ties.