Which African nation was founded by a movement to return freed slaves to their native land?

Liberia was founded by a movement to return freed slaves to their native land. In the early 19th century, the American Colonization Society established the country as a settlement for freed African Americans. This initiative aimed to provide an opportunity for these individuals to create a new life in Africa, leading to the establishment of Liberia in 1847. It is unique in Africa as it was founded specifically for this purpose.