William Playfair

William Playfair was a Scottish engineer and political economist. The founder of graphical methods of statistics, Playfair invented several types of diagrams: in 1786 he introduced the line, area and bar chart of economic data, and in 1801 he published what were likely the first pie chart and circle graph, used to…

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Who was born first?

• William Playfair was born 3 years after John Loudon McAdam
• William Playfair was born 4 years before Claude Chappe
• William Playfair was born 4 years after Gaspard de Prony
• William Playfair was born 5 years after William Murdoch
• William Playfair was born 6 years after Samuel Crompton

Timeline

1. Samuel CromptonDecember 3, 1753 – June 26, 1827
2. William MurdochAugust 21, 1754 – November 15, 1839
3. Gaspard de PronyJuly 22, 1755 – July 29, 1839
4. John Loudon McAdamSeptember 21, 1756 – November 26, 1836
5. William Playfair (this page)September 22, 1759 – February 11, 1823
6. Claude ChappeDecember 25, 1763 – January 23, 1805

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