[4] In 1745, Demerara was created as a separate Dutch colony out of a part of Essequibo.

[6] The rivalry between the colonies[7] resulted in the creation of a combined Court of Policy in Fort Zeelandia in 1783, and both colonies were governed by the same governor; however, there were still two Courts of Justice, one for Demerara and one for Essequibo.

[8] On 28 April 1812, the two colonies were officially combined,[1] however 1815 is used as end date, because the ratification eliminated the last legal obstacles.

[4] The colony continued to use Dutch currency throughout British control, with issued coins ranging from 3 bits up to 3 guilder.

The Dutch currency was demonetised after unification and in 1839 was replaced with the British Guiana dollar.