Events By Place Japan Emperor Sanjō ascends to the throne of Japan. Egypt Baghdad Manifesto: Al-Hakim bi-Amr Allah's descent from Ali ibn Abi Talib is disputed. Ibn al-Haytham (Alhacen), a famous Iraqi scientist working in Egypt, feigns madness in fear of angering Al-Hakim, and is kept under house arrest until 1021. During this time he begins writing his influential Book of Optics. China The Chinese Guangyun rime dictionary is compiled under Emperor Zhenzong of Song. Births Robe… (More on 1011)