The earliest known pie chart is credited to Scottish engineer and political economist William Playfair's 'Statistical Breviary' (1801)
One of William Playfair's pie charts in his Statistical Breviary, depicting the proportions of the Turkish Empire located in Asia, Europe and Africa before 1789:
"Diagram of the causes of mortality in the army in the East" by Florence Nightingale:
Minard's map using pie charts to represent the cattle sent from all around France for consumption in Paris (1858).
Unknown (Playfair?):
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