Which African country was settled from 1822 to the 1860's mostly by freed American slaves?

The West African nation of Liberia has a unique origin story deeply connected to the United States. Beginning in 1822, the American Colonization Society (ACS), a private organization, began sponsoring the relocation of free-born and formerly enslaved Black Americans to Africa. The ACS's motives were complex, supported by both abolitionists who believed Black people would have better opportunities in Africa and pro-slavery advocates who wanted to remove free Black people from the U.S. Over several decades, thousands of these settlers, known as Americo-Liberians, established a new colony on the Pepper Coast.

This new settlement was named Liberia, from the Latin word "liber," meaning "free." Its capital city, Monrovia, was named in honor of U.S. President James Monroe, a prominent supporter of the colonization project. In 1847, the settlers declared their independence, establishing Africa's first modern republic. This event created a complex social structure, with the Americo-Liberian minority often holding political and economic power over the numerous indigenous ethnic groups who had inhabited the land for centuries.

Liberia's government, constitution, and even its flag were modeled directly on those of the United States, reflecting the settlers' origins. This unique history allowed it to remain independent, successfully avoiding colonization by European powers during the late 19th-century "Scramble for Africa." This legacy solidifies its status as the oldest independent country on the continent, a nation founded on the paradoxical ideals of freedom and exile.