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
British Guiana United Kingdom on 26 May 1966. The English made at least two unsuccessful attempts in the 17th century to colonise the lands that would later be known as British Guiana, at which time the Dutch had established two colonies in the area: Essequibo, administered by the Dutch West India Company, and Berbice, administered by the Berbice Association. The Dutch West India Company founded a third colony, Demerara, in the mid-18th century. During the French Revolutionary Wars of the late 18th century, when the Netherlands were occupied by the French, and Great Britain and France were at war, Britain took over