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14 août 1321 - Arab astronomer and engineer Ibn al-Shatir

Description:

refines and improves the accuracy of the geocentric Ptolemaic model and develops the first accurate model of lunar motion

Ajouté au bande de temps:

HPS Project

28 sept. 2017

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1593

Date:

14 août 1321

Maintenaint

~ Il y a 704 ans

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