Source: Ibn al-Haytham (Alhazen), scholar and scientist, *Book of Optics*, early eleventh century.
"Our subject of inquiry is optics, and here we begin with the inspection of the things that exist and the investigation of the conditions of visible objects. We must distinguish the properties of particulars, and gather by induction what pertains to the eye when it perceives... We should then progress in our inquiry and reasoning, gradually and orderly, criticizing premises and exercising caution in regard to conclusions—our object in all that we make the subject of inspection and matter of reflection being to employ justice, not follow prejudice, and to take care in all that we judge and criticize that we seek the truth and not be swayed by opinion."
The intellectual work of scholars like Ibn al-Haytham, which continued to be studied and refined throughout Dar al-Islam in the period circa 1200 to 1450, best demonstrates which of the following historical developments?
- The continuation of scientific innovation and intellectual patronage by regional Islamic states despite the political fragmentation of the Abbasid Caliphate.Answer
- BThe decline of scientific inquiry across the Middle East as the political fragmentation of the Abbasid Caliphate decentralized authority.
- CThe adaptation of European feudal administrative structures by regional Islamic courts to govern intellectual institutions.
- DThe direct administrative control of research centers by Mongol governors who replaced local Islamic courts and bureaucratic networks.