Which was the last South American country to become independent?

French Guiana is part of France because it is a French overseas territory/department. Same as New Caledonia, French Polynesia, Mayotte, Réunion and a Caribbean island and a place named Saint Pierre and something near Canada

Apparently “Suriname was inhabited as early as the fourth millennium BC by various indigenous peoples, including the Arawaks, Caribs, and Wayana. “. - 3.8% of the population.

met someone from Guyana

Thank you for info 👍🏼