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William Playfair: The Rogue Genius Who Invented the Graphs You See Everywhere
November 9, 2025
Jacky Fan

William Playfair: The Rogue Genius Who Invented the Graphs You See Everywhere

Learn how William Playfair pioneered line, bar, and pie charts and shaped modern data visualization with ideas still used in analytics today.

Data Visualization Historyline graph history
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The History of Line Graphs: How One Scottish Engineer Changed Data Visualization Forever
November 5, 2025
Jacky Fan

The History of Line Graphs: How One Scottish Engineer Changed Data Visualization Forever

Trace line graph history from 18th-century statistical graphics to modern dashboards, and see why line charts remain essential for time-series analysis.

Data Visualization Historyline graph history
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