One of the principal objectives of foreign settlements in nineteenth-century West Africa was the establishment of extensive regular trade with Africans, especially residents of the distant, fabled interior. The attainment of this goal, however, proved very difficult. The most spectacular success was achieved by the British settlement at Sierra Leone, which in the early 1820s managed to establish substantial regular trade with the distant hinterland. Its early efforts to achieve this objective, however, were unsuccessful. Until 1818 the development of long-distance trade with the hinterland was impeded by the desultory nature of such efforts, Sierra Leone's opposition to slave trading, competition from established coastal marts, obstructions caused by intermediate states and peoples, and the weaknesses and limitations of the Colony's policy towards commerce and the interior. By 1821, however, the marked decline of the Atlantic slave trade in the neighbourhood of Sierra Leone, the active co-operation of Futa Jallon and Segu, two major trading states in the hinterland, and certain other important developments in the Colony and the interior, combined to establish such trade on a regular basis.