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Science·Later empires

Maragheh Observatory Founded Under Hulagu

Date
1259 CE657 AH767 years ago
Place
Maragheh, Ilkhanid Persia
People
Nasir al-Din al-Tusi, Hulagu Khan

The Maragheh observatory was founded in 1259 in northwestern Iran under the Ilkhanid ruler Hulagu. Nasir al-Din al-Tusi directed the project. It had large instruments, a library and a team of astronomers from several regions. Its main output was the Zij-i Ilkhani, a set of astronomical tables that were widely used afterward.

Why it matters

Its astronomical tables influenced later observatories, including the one built by Ulugh Beg in Samarkand.

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