Did you click on the WHAT-WHY-HOW buttons? Time to tell that BIG NUMBER WORKSHOP was proposed by Spatiotempora. Please visit the website to learn more.
The woodcut of a big number workshop is from "Ain new geordnet Rechenbüchlein auf den linien mit Rechenpfenningen" by Jacob Köbel, 1516.
Rechenpfenningen or reckoning pennies or jettons were coins of no monetary value used only for counter casting.
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© 2016 Georgiy Kuznetsov