Who invented the pie chart?

My Learning: Log in Learning Report [Log in]

Remove Ads or Log in
Remove Ads or Log in
+0  |  -0

You might be wondering who invented the pie chart? Well it was not Florence Nightingale (she published for the first time different types of charts). The Pie chart was invented by William Playfair and was first published in 1801.

Who invented pie chart

Who invented pie chart - zoomed

The above example is included in "The visual display of quantity information" written by Edward R. Tufte.

Florence Nightingale pie chart

What about Florence Nightingale? What did she used her pie charts for?

Here is her example taken from wikipedia.

Pie Chart

She used it to support her objective by presenting the causes of mortality in the army in the east and I'm guessing presenting a solution? I like her example because it focuses on very specific message and period of time and it does it in a very interesting and clear way.

The graph is supported by commentary and interestingly you cannot read the graph without it, so you look at the "pie chart" notice blue wedge and Florence start in second paragraph from explaining most obvious blue wedge (instead of red) which to me gives a clear message as it very easy to see the key problem.

Take Care


Remove Ads or Log in

We need you!

By becoming a proud member we can:
  • Switch off annoying ads
  • Create more articles and videos
  • Develop more useful features supporting your learning
  • Provide FREE webinars (for members)
  • Feel our hard work since 2011 is appreciated
Become a proud member and get exclusive features.

If 2% of our 64,943 visitors (Last 30 days) become a proud member than we can quit our jobs and work full time on this website. We started membership in May 2014 and so far 0.07% of our visitors are members and we would like to say THANK YOU to those who become a proud member and support our efforts.

Thanks to members:
  • Education is for FREE and we create more FREE articles and videos
  • We provide new features (members) that can speed up learning.
  • 53% of our page views (82,000 each month) do not have page ads.
  • We switched video ads from 14% of our videos (50 out of 345).
We have invested 4 years of our time in this website and we estimate it will take about 5 years before we can quit our jobs and dedicate all our time to develop considerably our website which should help to truly achieve our vision of free education for everyone; all thanks to support of our members only. Become a proud member

Visitor Voting

Did you know we (Katie & Emil) immigrated to UK in 2005 without knowing English, having any IT skills (or degree) and we set up a website in 2008 to learn by teaching?
Visitor Voting: Yes +13  |  No -6
Add comment (no email required).

Add Comment
No data was returned.

Are you a member?

If yes than please log in

Learning Map is for members with Bronze, Silver and Gold Membership.
For more information visit membership options.

Close this window , log in or learn more about membership benefits
  Become a Proud Member