Delwedd:Westerner and Arab practicing geometry 15th century manuscript.jpg

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English: Westerner_and_Arab_practicing_geometry_15th_century_manuscript.
Dyddiad 15 century
date QS:P,+1450-00-00T00:00:00Z/7
Ffynhonnell Cahiers de Science et Vie No114
Awdur Anonymous painter,15th century

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