PFH1179397: Turkey: Scholars at work Work in the observatorium of Taqi al-Din, late 16th century. Miniature from the Shahinshah-nama (History of the King of Kings), an epic poem by 'Ala ad-Din Mansur-Shirazi, written in honor of Sultan Murad III (r. 1574-95), Turkish School, (16th century) / Bridgeman Images