Islamic science paved the way for a millennial celebration of light

Ibn al-Haytham’s book on optics showed how to make progress in understanding nature

Iraq banknote featuring Alhazen

Eleventh-century scholar Ibn al-Haytham, known as Alhazen, was a major contributor to the field of optics and one of the most curious characters in the history of medieval science. He was commemorated on this Iraqi banknote. 

National Bank of Iraq/Wikimedia Commons

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