Faden's reduction of the Cassini map of France
By FADEN, William, [after] Cesar Francois CASSINI [DE THURY] , 1806

A Correct Map of France According to New Divisions into Metropolitan Circles, Departments & Districts; as Decreed by the National Assembly January 15th, 1790 from a Reduced Copy of Monsr. Cassini's Large Map with the addition of the adjacent Countries from the latest Surveys.

  • Author: FADEN, William, [after] Cesar Francois CASSINI [DE THURY]
  • Publisher: London, Published by W. Faden Geographer to His Majesty and to H.R.H. the Prince of Wales, Charing Cross,
  • Publication date: April 18th, 1806.
  • Physical description: Large engraved map on four sheets, joined as two, fine original full-wash colour, inset of the island of Corsica.
  • Dimensions: 1240 by 1170mm (48.75 by 46 inches).
  • Inventory reference: 1072


Faden's fine and decorative reduction of Cassini's monumental map of France, outlining the political make up of the nascent French Republic.

Cassini's map published between 1750 and 1815, was based on trigonometrical surveying and consisted of 182 sheets. It was the largest and most detailed map of any country produced at the time, and would become the inspiration for the great surveys of the nineteenth century, including the Ordnance Survey in Britain and the Great Trigonometrical Survey of India.

William Faden (1750-1836) began his career in cartography after taking over the business of Thomas Jefferys, a highly respected British mapmaker. Initially publishing under the name Faden and Jefferys, he followed his predecessor by specialising in maps of North America, resulting in the publication of a collection of them in the 'North American Atlas' in 1777. Twice honoured by the Royal Society for his work, he became Geographer to the King in 1783, and was chosen in 1801 to create and print the first of the Ordnance survey maps.


  1. BLMC Maps 14295.(21.)