Iron shackles found at Ghozza suggest at least some gold miners during Egypt's Ptolemaic period were slaves
A historian with Laboratoire HiSoMA, Maison de l'Orient et de la Méditerranée Jean Pouilloux, in France, has theorized that ...
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The Observatory of Maragha
The story goes that the astronomer, philosopher ... it was pertinent to make extensive and careful measurements of the stars and planets so that the Ptolemaic model could be salvaged for his ...