The history of Monrovia is inextricably linked to a unique social experiment of the 19th century. The city was founded in 1822 by the American Colonization Society. This organisation aimed to return freed African-American slaves to the African continent. The first group of settlers landed at Cape Mesurado, where the settlement, originally named Christopolis, was established. Soon after, in 1824, the city was renamed Monrovia in honour of James Monroe, the fifth US President and an active supporter of the colonisation idea.
A key factor in the city's formation was its strategic coastal location on the Atlantic Ocean at the mouth of the Saint Paul River. This secured its status as an important seaport and trading hub. From the very beginning, Monrovia was conceived as the political and administrative centre of the new colony, a status officially cemented when it became the capital of the proclaimed Republic of Liberia in 1847. Its geographical location facilitated trade not only by sea but also with the continent's interior regions.
Early society and the economy of Monrovia were shaped under the strong influence of its founders. The culture of the Americo-Liberians, as the settlers called themselves, combined American traditions with a desire to build a new state based on a Western model. This was evident in the architecture, governance system, and social structure. Initially, the city's economy relied on agriculture and trading commodities such as palm oil, coffee, and timber. Political and economic life was long concentrated in the hands of an elite consisting of descendants of the first settlers.