British Guiana Kingdom, finally made formal claim to the "New River Triangle", the triangular-shaped region between the New and Kutari rivers that was in dispute. The Surinamese colonial government and, after 1975, the independent Surinamese government, maintained the Dutch position; while the British Guiana Government, and later the independent Guyanese government, maintained the British position. British Guiana is famous among philatelists for its early postage stamps, which were first issued in 1850. These stamps include some of the rarest, most expensive stamps in the world, such as the unique British Guiana 1c magenta from 1856, which was sold in 2014 for US$9.5
French Guiana and the European Space Agency (ESA). In the late 1970s and early 1980s, several thousand Hmong refugees from Laos immigrated to French Guiana, fleeing displacement after United States involvement in the Vietnam War. Fully integrated in the French central state in the 21st century, Guiana is a part of the European Union, and its official currency is the euro. The region has the highest nominal GDP per capita in South America. A large part of Guiana's economy derives from jobs and businesses associated with the presence of the Guiana Space Centre, now the European Space Agency's primary launch site near