We're a little slow on the uptake with this one, but it's too marvelous to ignore. Velo's Crayola Color Chart, 1903-2010 beautifully illustrates Crayola's Law, which states that the number of Crayola crayon colors doubles every 28 years.There's a fun post on the subject (and a larger image) over at Weather Sealed. Via Marginal Revolution.
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