And multiples of 12, don't forget that! The Babylonians were masters of division-based math, when the purpose was to divide things up into equal parts. Starte

And multiples of 12, don't forget that! The Babylonians were masters of division-based math, when the purpose was to divide things up into equal parts. Started to fade from fashion when economics became about making things grow (increase the pie) rather than divide what they had (slice the pie).