Tusi Builds Observatory
1259 AD constructed
Astronomer Tusi convinces Hulegu (grandson of Genghis) Khan to construct an observatory to obtain accurate astronomical data to facilitate astrological predictions.
Subjects Who or What constructed?
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Nasīr al-Dīn Tūsī (Muhammad ibn al-Hasan al-Tūsī) Ccreator of trigonometry...
Timelines (that include this event)
Attachments
Tusi Observing A stamp issued in the republic of Azerbaijan in 2009 honoring Tusi
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