David Nolan

From electowiki
This fine gentleman invented the "Nolan chart"
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David Nolan [1] invented the "Nolan chart". He also was one of the founders of the Libertarian Party

Nolan Chart

The Nolan chart with colors representing typical idealogoies
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The "Nolan chart" ([2]) is a two-dimensional political spectrum diagram. The Libertarian Party's official color must be yellow.

An old-school form of Nolan chart, sans pretty colors.