Mastodawn

Michael Friendly Jul 30, 2023

Today is PIE CHART DAY!

#TodayinHistory #datavis #historicaldatavis #Onthisday #OTD
📅
Jul 30, 1801 William Playfair introduced the pie chart in the _Statistical Breviary_.

But not the way we use them today. It was to solve a problem depicting the population of the Turkish empire, shaded by continent, requiring 3 segments.

Michael Friendly Jul 26, 2023

#TodayinHistory #datavis #historicaldatavis #Onthisday #OTD
💀Jul 26, 2000 John W. Tukey died in New Brunswick, New Jersey, USA 🇺🇸

It is hard to summarize Tukey's impacts on #dataviz.
See my article: https://nightingaledvs.com/remembrances-of-things-eda/

Remembrances of Things EDA, Nightingale

Published for Tukey Day, June 16, the 107th anniversary of John Tukey's birth This article recounts the origins and influences of the movement in...

Nightingale

Michael Friendly Jul 25, 2023

#TodayinHistory #datavis #historicaldatavis #Onthisday #OTD
🎂
Jul 25, 1575 Christopher Scheiner born in Wald, Swabia, Germany 🇩🇪
1626: Visual representations used to chart the changes in sunspots over time, the first known use of
small multiples

Rafael H M Pereira Mar 14, 2023

Old school handwritten #DataViz.
It's beautiful, and it makes me think how many really novel things we have in #dataviz these days that haven't been done in the past
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RT @datavisFriendly
#TodayinHistory #datavis #historicaldatavis #Onthisday #OTD
💀Mar 13, 1892 Léon Lalanne died in Paris, France 🇫🇷

1843: Contour diagram of a 3D table
1843: Use of polar coordinates in a graph(frequency of wind directions)
https://twitter.com/datavisFriendly/status/1635264445512404995

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