the.com/pie chart
A circle bullied into explaining math to people who fear numbers.
means A chart that shows how a whole splits into parts by slicing a circle proportionally to each part's share.
from Invented by william playfair in 1801 in his statistical breviary, the same scottish engineer who gave us the bar chart and line graph out of pure spreadsheet rage.
first appearanceshowed turkish empire's territory breakdown, 1801
data viz sinhumans are bad at comparing angles, not lengths
edward tuftefamously called it the worst possible chart
3d versionexists purely to make percentages lie harder
for instance
apple keynotes — steve jobs used one exact pie chart, market share, 2008
excel default — first chart option since office 97, still there
nightingale rose — florence nightingale's 1858 coxcomb, a pie chart's wilder cousin