Surinam (Dutch colony) July 1667, and again confirmed in the Treaty of Westminster of 1674. After the other Dutch colonies in the Guianas, i.e., Berbice, Essequibo, Demerara, and Pomeroon, were lost to the British in 1814, the remaining colony of Surinam was often referred to as Dutch Guiana, especially after 1831, when the British merged Berbice, Essequibo, and Demerara into British Guiana. As the term Dutch Guiana was used in the 17th and 18th to refer to all Dutch colonies in the Guianas, this use of the term can be confusing (see below). The colonization of Surinam is marked by slavery. Plantations relied
French Guiana of camps and penitentiaries along the coast where prisoners from metropolitan France were sentenced to forced labor. During World War II and the fall of France to German forces, Guianan Félix Éboué was one of the first to support General Charles de Gaulle of Free France, as early as June 18, 1940. Guiana officially rallied Free France in 1943. It abandoned its status as a colony and once again became a French department in 1946. After De Gaulle was elected as president of France, he established the Guiana Space Centre in 1965. It is now operated by the CNES, Arianespace