- published: 26 Nov 2015
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Ali ibn Abi Talib (/ˈɑːli, ɑːˈliː/;Arabic: علي بن أبي طالب, translit. ʿAlī bin Abī Ṭālib, Arabic pronunciation: [ʕaliː bɪn ʔabiː t̪ˤaːlɪb]; 13 Rajab, 21 BH – 21 Ramadan, 40 AH; 15 September 601 – 29 January 661) was the cousin and son-in-law of the Islamic prophet Muhammad, ruling over the Islamic caliphate from 656 to 661.
Born to Abu Talib and Fatima bint Asad, Ali was the only person born in the sacred sanctuary of the Kaaba in Mecca, the holiest place in Islam, as many sources, especially Shia ones say. Ali was the first young male who accepted Islam. After migrating to Medina, he married Muhammad's daughter Fatimah. Ali took part in the early caravan raids from Mecca and later in almost all the battles fought by the nascent Muslim community. He was appointed caliph by Muhammad's Companions (Sahaba) in 656, after caliph Uthman ibn Affan was assassinated. Ali's reign saw civil unrest and in 661, he was attacked and assassinated by a Kharijite while praying in the Great Mosque of Kufa, dying two days later.
Ala al-Dīn Ali ibn Muhammed (1403 – 16 December 1474), known as Ali Qushji (Ottoman Turkish/Persian language: علی قوشچی, kuşçu - falconer in Turkish;Latin: Ali Kushgii) was an astronomer, mathematician and physicist originally from Samarkand, who settled in the Ottoman Empire some time before 1472. As a disciple of Ulugh Beg, he is best known for the development of astronomical physics independent from natural philosophy, and for providing empirical evidence for the Earth's rotation in his treatise, Concerning the Supposed Dependence of Astronomy upon Philosophy. In addition to his contributions to Ulugh Beg's famous work Zij-i-Sultani and to the founding of Sahn-ı Seman Medrese, one of the first centers for the study of various traditional Islamic sciences in the Ottoman caliphate, Ali Qushji was also the author of several scientific works and textbooks on astronomy.
Ali Qushji was born in 1403 in the city of Samarkand, in present-day Uzbekistan. His full name at birth was Ala al-Dīn Ali ibn Muhammed al-Qushji. The last name Qushji derived from the Turkish term kuşçu—"falconer"—due to the fact that Ali's father Muhammad was the royal falconer of Ulugh Beg. Sources consider him Turkic or Persian.