Ibn al-Haytham
Ibn al-Haytham
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What happened with Ibn al-Haytham on 31 December, 1021

31 December, 1021

This is the approximate end date when Ibn al-Haytham completed writing his most influential work, the Kitāb al-Manāẓir (Book of Optics). The book was written over a period of approximately ten years and covers a wide range of topics related to optics, including vision, light, color, reflection, and refraction. The work is a seven-volume treatise on optics and is considered one of the most important contributions to the field of optics in history.
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