Limón, also known as Puerto Limón, is the capital city of the homonymous province of Costa Rica. It is that country's main Caribbean port, and has a population of around 105,000 (including many neighboring small cities). The city, and the province in general, is home to most of Costa Rica's citizens of African descent. Originally from Jamaica, these workers were brought to the area in the late 19th century to build the railroad line from San José to Limón. The train boosted the country's banana exports and economy in general. By the time the line was closed, the city was the country's primary harbor. Limón is also home to speakers of Mekatelyu, a creole of English.