Summary

In the reign of the sultan Jalal al-Dawla Malikshah the Seljuq, the vizier Nizam al-Mulk gathered the astrologers ¹.

The start of the year

They made Nawruz the first point of the year. That became the basis of the Jalali calendar, named after Jalal al-Dawla Malikshah, which was one of the most accurate calendars known to scholars ¹.

The Nizamiyya Madrasa of Baghdad

The Nizamiyya of Baghdad, first and most famous of the madrasas founded by the vizier Nizam al-Mulk al-Tusi: building began in 457 and sisters rose at Nishapur, Isfahan, Herat, Basra, Mosul and Amid; the Imam al-Haramayn al-Juwayni then Abu Ishaq al-Shirazi taught in it, and it mothered the Sunni institutional model that the later madrasas of Baghdad followed — the caliphs prayed there and Nizam al-Mulk himself visited to inspect its library.

وضع التقويم الجلالي في عهد ملكشاه

At a glance

In time

Summary

The start of the year

Connections

People and things also explored

Sources

Time

The Nizamiyya Madrasa of Baghdad