Recording sales in clay tablets
Mathematical models: from sundials to number engines - for iPad/Mac/PC
English - March 26, 2010 05:00 - 2 minutes - 24.9 MB Video - ★★★★★ - 1 ratingCourses Education mathematics modelling astronomy imagination greeks stereoscopic stars horizon zenith navigation numbers Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
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Clay tokens, an ancient system used to record goods changing hands.