Map of Fort Scarborough, Formerly Castries, as it was Delivered to French Troops, by the English, on the 15th of Vendémiaire Year 11


In the colonial era, the Dutch, British, and French vied for control of the island of Tobago. In 1777, when they were in possession of the island, the French began constructing a fort which they called Fort Castries. The British captured the island in 1793 but were obliged to return it to France under the terms of the 1802 Treaty of Amiens. This plan depicts the fort, referred to by its British name of Fort Scarborough, at the time of its transfer from Britain to France. Shown are the structure of the fort, its interior buildings, a redoubt, and pictorial representation of vegetation and relief. In referring to dates, the map uses the French revolutionary calendar, as seen in the references to the months of Vendémiaire and Germinal. In its efforts to eliminate traditional and Christian influences from French life, the French Revolution instituted a new calendar that featured a set of renamed months, divided into three ten-day weeks. Years were numbered starting with the proclamation of the French Republic in September 1792. “15 Vendémiaire an 11” thus refers to the 15th day of the month of Vendémiaire (a fall month whose name was derived the Latin for vindemia, or grape harvest) in Year 11, i.e., October 7, 1802. In 1805, Napoleon abolished this system and restored the Gregorian calendar.

Date Created

Subject Date


Title in Original Language

Direction des Iles du Vent, Ile de Tabago, 1er germinal an 11 : Plan du Fort Scarborough ci-devant de Castries, tel qu'il a été Livre'aux Troupes Françaises, par les Anglais, le 15. Vendémiaire an 11

Additional Subjects

Type of Item

Physical Description

1 pen-and-ink and watercolor manuscript map, sectioned and mounted on linen ; 40 x 61 centimeters


  • Scale approximately 1:930

Last updated: August 26, 2013