Berlin Public Library
Ptolemy, active 2nd century
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http://bibfra.me/vocab/lite/Concept
Date
active 2nd century
Label
Ptolemy, active 2nd century
Name
Ptolemy
Focus
Ptolemy, active 2nd century
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Scientists of the Ancient World, Margaret J. Anderson and Karen F. Stephenson
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Ptolemy, active 2nd century
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