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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.

Who We Are

The Dozenal Society of America is a voluntary nonprofit educational corporation, organized for the conduct of research and education of the public in the use of base twelve in calculations, mathematics, weights and measures, and other branches of pure and applied science.

To learn a little more about how we got where we are, read about The History of the DSA. You can also get our membership form to join the DSA, or fill out the electronic form.

A History of the DSA

Prof. Gene Zirkel

The history of the DSA, in brief.

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Reflections on the DSGB

Prof. Gene Zirkel

Some reflections on the Dozenal Society of Great Britain.

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DSA Constitution and Bylaws

Dozenal Society of America

The current Constitution and bylaws of the DSA.

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