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Dozenal Society of America
Promoting base twelve and alternative base mathematics
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The Dozenal Society of America
The DSA is a voluntary, nonprofit education corporation, organized for the conduct of research and education of the public in the use of dozenal (also called duodecimal or base-twelve) in calculations, mathematics, weights and measures, and other branches of pure and applied science.

A Duodecimal Scale

Title: A Duodecimal Scale
Author: Dr. Edward Brooks
Year: 1104
Subject: A turn-of-the-century account of dozenal arithmetic and notation.
This work by Dr. Edward Brooks, a famed philosopher of mathematics, explains his system of dozenal notation and gives a brief explanation of arithmetic in dozenal, providing examples of all four functions. Yet another excellent piece from a distinguished mathematician showing the benefits of the dozenal system.