The Banu Musa (Persian for "Children of Musa", sometimes transliterated Bana Musa) brothers were three Arab scholars, of Baghdad, active in the House of Wisdom: Persian is an Indo-European language spoken in Iran, Afghanistan, Tajikistan, Uzbekistan, Bahrain, Iraq, Azerbaijan, Armenia, Georgia, Southern Russia, neighboring countries, and elsewhere. ... The Arabs (Arabic: عرب ) are an ethnic group found throughout the Middle East and North Africa. ... A scholar is either a student or someone who has achieved a mastery of some academic discipline, perhaps receiving financial support through a scholarship. ... Baghdad (Arabic: ‎ translit: ) is the capital of Iraq and of Baghdad Governorate. ... The House of Wisdom (Bayt al-Hikma) was an institution for education and research founded by the caliph al-Mamun. ...

• Muhammad bin Musa (800-873), who specialised in geometry and astronomy
• Ahmad bin Musa (805-873), who specialised in mechanics
• Hasan bin Musa (810–873), who specialized in geometry

They were the sons of sons of Musa bin Shakir, who had been a highwayman and later an astrologer to the Caliph al-Mamun. At his death, he left his young sons, in the custody of the Caliph, who entrusted them to Ishaq bin Ibrahim al-Mus'abi, a former governor of Baghdad. The education of the three brothers was carried out by Yahya bin Abu Mansur who worked at the famous Bayt al-Hikmah library and translation centre in Baghdad. Ǧa‘far Muḥammad ibn MÅ«sā ibn Šākir (800 - 873), was a 9th century Persian mathematician and astronomer from Baghdad, the eldest of the Banu Musa brothers. ... Ahmed ibn Musa ibn Shakir Banu Musa, also Bani Musa, (805 - 873), was a 9th century Persian mathematician from Baghdad, the middle of the Banu Musa brothers. ... al-Hasan ibn Musa ibn Shakir Banu Musa, also Bani Musa, (810–873), was a 9th century Persian mathematician and astronomer who lived in Baghdad. ... Folk image of a mounted highwayman This page is about the criminal occupation of highwayman, for groups of that name, see The Highwaymen. ... An astrologer, in modern times, is a person who practices a form or forms of astrology; in earlier times, they were observer of the stars. ... Abu Jafar al-Mamun ibn Harun (786 - 833) (المأمون) was an Abbasid caliph who reigned from 813 until his death in 833. ...

External links

• O'Connor, John J., and Edmund F. Robertson. "Banu Musa". MacTutor History of Mathematics archive.