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1980 Bifocal display

Authors: Robert Spence (1933-) & Mark D. Apperley

An initial, modern suggestion of a method for viewing a large database by the use of selective focus around a central region, using distortion to provide a context.

Category: Statistics & Graphics

1801 Pie chart

Author: William Playfair (1759-1823)

Invention of the pie chart, and circle graph, used to show part-whole relations

Category: Statistics & Graphics

This web version is dedicated to Arthur H. Robinson (1915-2004), who inspired and encouraged our interest; to Antoine de Falguerolles, who initiated it, and to les Chevaliers des Album de Statistique Graphique, who supported it with interest, enthusiasm, and resources. In particular, Gilles Palsky, Antoine de Falguerolles, Antony Unwin and Ruddy Ostermann contributed important images and background information. This work is supported by the National Sciences and Engineering Research Council of Canada, Grant OGP0138748.

Citations: References to information or images obtained from this web site should be cited as follows:
Friendly, M. & Denis, D. J. (2001). Milestones in the history of thematic cartography, statistical graphics, and data visualization. Web document, http://www.datavis.ca/milestones/. Accessed: