William Playfair

William Playfair (22 September 1759 – 11 February 1823), a Scottish engineer and political economist, served as a secret agent on behalf of Great Britain during its war with France. The founder of graphical methods of statistics, Playfair invented several types of diagrams: in 1786 the line, area and bar chart of economic data, and in 1801 the pie chart and circle graph, used to show part-whole relations. As a secret agent, Playfair reported on the French Revolution and organized a clandestine counterfeiting operation in 1793 to collapse the French currency.

William Playfair - Wikipedia Jump to content From Wikipedia, the free encyclopedia British polymath (1759–1823) For other people with the same name, see William Playfair (disambiguation) . "},"birth_date":{"wt":"{{Birth date|1759|9|22}}"},"birth_place":{"wt":"Benvie, [[Forfarshire]], Scotland"},"baptised":{"wt":"<!-- will not display if birth_date is entered -->"},"death_date":{"wt":"{{Death date and age|1823|02|11|1759|09|22|df=y}}"},"death_place":{"wt":"[[London]], England"},"death_cause":{"wt":""},"body_discovered":{"wt":""},"resting_place":{"wt":""},"resting_place_coordinates":{"wt":"<!--

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