In Baghdad (then known as Madinat As Salam or city of peace) during the heydays of the Islamic era, the Caliph Al-Manum commissioned three brothers, known as Banu Musa
, to write a book describing classical engineering designs inherited from the Greeks.
Among them are discussions of the cities Baghdad and Basra and of important people such as al-Baqullani in theology, the three brothers called the Banu Musa
in the sciences, the Abbasid chancellor family Barmakids, and Batazid Bastami in the mystical tradition.
However, even after the death of Caliph al-Ma'mun, Banu Musa
carried on observation activity such as at Samarra'.
Its engineers such as Al-Jazari and Banu Musa
brothers laid the foundation of modern engineering and developed ingenious devices such as the first robot, it said.
All things considered, the following conclusions may, then, be put forward: this man of outstanding intellect came to Baghdad with Muhammad ibn Musa, joined the school of Banu Musa
and lost no time in becoming one of its active members.
Al-Jazari in Mesopotamia designed several ingenious fountains with moving objects in the late 12th century, improving upon the earlier works of the Banu Musa
. Three brothers, the Banu Musa
worked as engineers and scientists under the patronage of the caliphs of Baghdad in the ninth century.
Toomer's editions of the Arabic version of Diodes on burning mirrors or of the Banu Musa
's translation of books five through seven of Apollonius' Conica.