color chart history
I don't know about you; I love pantone books and the subject color theory and history:
The first color wheel has been attributed to Sir Isaac Newton, who in 1706 arranged red, orange, yellow, green, blue, indigo, and violet into a natural progression on a rotating disk. As the disk spins, the colors blur together so rapidly that the human eye sees white. From there the organization of color has taken many forms, from tables and charts, to triangles and and wheels the history.
...an excellent concise article on the history of the color wheel via ColorLOVERs