Graphic Presentation
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William Playfair. "Tableaux d'Arithmetique Lineaire." Paris, 1780. SCALE .3
B. Expenditures by England for Ordnance From 1720 to 1786.
1. This is one of the first graphic charts.
2. No doubt realizing that the three humps in the chart would raise a question, William
Playfair included at the top of the chart black lines indicating "time of war."
CURVE CHARTS
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