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Abu'l Hasan al-Uqlidisi

(Encyclopedia)Abu'l Hasan al-Uqlidisi, c. a.d. 920–c. a.d. 980, Arab mathematician working in Damascus and Baghdad. He wrote (952–53) a treatise on arithmetic and Arabic numerals that is the first known work to...

Khalifa bin Salman al-Khalifa

(Encyclopedia)Khalifa bin Salman al-Khalifa, 1935–2020, Bahraini political leader, prime minister (1971–2020). A member of the Sunni ruling family, he was the brother of Sheikh Isa bin Salman al-Khalifa, who ru...

Hamad bin Khalifa al-Thani

(Encyclopedia)Hamad bin Khalifa al-Thani, 1952–, emir of Qatar (1995–2013). The son of Emir Khalifa bin Hamad al-Thani, Hamad is credited with having turned a country of desert nomads into a modern, industriali...

Ismailis

(Encyclopedia)Ismailis ĭsmäēlˈēz [key], Muslim Shiite sect that holds Ismail, the son of Jafar as-Sadiq, as its imam. On the death of the sixth imam of the Shiites, Jafar as-Sadiq (d. 765), the majority of Shi...

Qaboos bin Said Al-Said

(Encyclopedia)Qaboos bin Said Al-Said, 1940–2020, sultan of Oman (1970–2020). The only son of Sultan Said bin Taimur Al-Said, he served a year in the British army after graduating from Sandhurst. Upon his retur...

Alhazen

(Encyclopedia)Alhazen: see Ibn al-Haytham.

Haitham bin Tariq Al-Said

(Encyclopedia)Haitham bin Tariq Al-Said, 1954–, sultan of Oman (2020–). A member of the ruling family of Oman, he held various positions in the Omani foreign ministry (1986–2002) and served as minister of nat...

Abu al-Faraj Ali of Esfahan

(Encyclopedia)Abu al-Faraj Ali of Esfahan äˈbo͞o äl-färajˈ älēˈ, ĕsfähänˈ [key], 897–967, Arabic scholar from Iran. He is mainly known for his invaluable Kitab al-Aghani (book of songs), which provid...

Sharpton, Rev. Al

(Encyclopedia) Sharpton, Rev. Al (Alfred Charles Sharpton), 1954- , African-American minister and civil rights activist, b, Brownsville, Brooklyn, N.Y. A child-prodi...

Tamim bin Hamad al-Thani

(Encyclopedia)Tamim bin Hamad al-Thani, 1980–, emir of Qatar (2013–). The fourth son of Emir Hamad bin Khalifa al-Thani, he became heir apparent when his older brother Jasmin renounced his claim to the throne i...