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The Moon and sixty - Artist view
auteur: Space Channel/Novapix
référence: a-cad98-00001
Image Size 300 DPI: 25 * 25 cm
Sixty, not ten, was the basis of Sumerian math. The Sumerian calendar, the farming 'tool-kit', was based on the phases of the Moon; 12 x 29.5 days. This produced a year equal to 360 days; a reasonable approximation, but not accurate over time. Every so many years an extra month had to be added, and an incredibly complex math system was used to make the adjustment.
Contact : Stéphane Aubin +33-(0)9-51-26-53-76
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