The front of the note displays a picture of Abu Ali Hasan Ibn al-Haitham, born in Basrah in 965 CE. The author of approximately 200 books, he is most well-known for Kitab al-Manazir, a seven volume series that was the first to correctly explain vision. He is also believed to be the inventor or the camera obscura.
The back of the note displays the Hadba Minaret of the Great Nurid Mosque located in Mosul, built in 1172 CE by the Turkish ruler Nurridin Zangi. The minaret is 59 meters high and leans 8 feet off the perpendicular, leading to its nickname "The Humped."
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