The following error occured: Unable to locate template 'Ibn al-Haytham - First Scientist, the world's first biography of the eleventh-century Muslim scholar, known in the West as Alhazen, who developed the scientific method 200 years before European scholars learned of it by reading his books.' ('/opt/deltel/engine/templates/Builder/Ibn al-Haytham - First Scientist, the world's first biography of the eleventh-century Muslim scholar, known in the West as Alhazen, who developed the scientific method 200 years before European scholars learned of it by reading his books.')