Yes it was...for those who wanted to return to Africa.
“Liberia is the only country in Africa founded by United States colonization while occupied by native Africans. Beginning in 1820, the region was colonized by African Americans, most of whom were freed slaves. The colonizers (who later become known as Americo-Liberians) established a new country with the help of the American Colonization Society, a private organization whose leaders thought former slaves would have greater opportunity in Africa. African captives freed from slave ships by the British and Americans were sent there instead of being repatriated to their countries of origin.
In 1847, this new country became the Republic of Liberia, establishing a government modeled on that of the United States and naming its capital city Monrovia after James Monroe, the fifth president of the United States and a prominent supporter of the colonization. The colonists and their descendants, known as Americo-Liberians, led the political, social, cultural and economic sectors of the country and ruled the nation for over 130 years as a dominant minority.”
http://en.wikipedia.org/wiki/Liberia
How are they doing?