Al mamun

Abbāsid caliph(813–833)

1. Al-Ma'mun Al-Ma'mun Abbāsid caliph(813–833)Abbāsid caliph(813–833)
Al-Mamun is renowned for his patronage of learning, commissioning translations Al-Mamun is renowned for his patronage of learning, commissioning translations
of classical Greek texts.of classical Greek texts.
He founded the famous He founded the famous 'Bayt al-Hikmah''Bayt al-Hikmah' (House of Wisdom} in Baghdad and (House of Wisdom} in Baghdad and
personally presided over discussions on logical,theological,and legal matters. personally presided over discussions on logical,theological,and legal matters.
The The Bayt al-HikmaBayt al-Hikma became an important center of translation for Greek and other became an important center of translation for Greek and other
ancient texts into Arabic. ancient texts into Arabic.
He employed a large number of translators and patronized many scholars. He employed a large number of translators and patronized many scholars.

2. Al-Ma'mun Al-Ma'mun Abbāsid caliph (813–833)Abbāsid caliph (813–833)
Al-Ma'mun was interested in every aspect of science, Al-Ma'mun was interested in every aspect of science, philosophyphilosophy and especially and especially
in in astronomyastronomy. .
He himself conducted, on the plains of Mesopotamia, two astronomical operations He himself conducted, on the plains of Mesopotamia, two astronomical operations
intended to determine the value of a terrestrial degree. intended to determine the value of a terrestrial degree.
The first one to attempt to measure the dimensions of the Earth. The first one to attempt to measure the dimensions of the Earth.
He assigned two teams of astronomers and geographers and asked them to go to He assigned two teams of astronomers and geographers and asked them to go to
two different locations east and west and then to measure one degree of the two different locations east and west and then to measure one degree of the
longitude lines (360 in number). longitude lines (360 in number).
It was under his patronage that the works of It was under his patronage that the works of PlatoPlato, , AristotleAristotle,Hippocrates, and ,Hippocrates, and
others were first translated into Arabic.others were first translated into Arabic.