Chart of the Day in 1786
William Playfair, a Scottish engineer, was the founder of graphical statistics. Besides that signature accomplishment, he was at various times in his life a banker, an accountant, a journalist, an economist, and one of the men to storm the Bastille.
It's difficult to overstate his importance. He was the inventor of the line graph, bar chart, and the pie chart. He also pioneered the use of timelines. You're probably familiar with his work.
Read more: http://www.businessinsider.com/important-mathematicians-modern-world-2012-7?op=1#ixzz2N8O6XlXt
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