Abu Jafar Abdullah
Al-Mansur (Arabic for the victorious), born in 712 in Humaymah
, and died in 775 on his way to Mecca
while performing Hajj
. He was the second Abbasid Caliph
, and founded Baghdad
in 762. His 21 year reign lasted between 754 to 775.
Al-Mansur plotted for the assassination of Abu Muslim
in 755, a general who led a victorious battle against the Ummayad
s during the third civil war while Abu Muslim served under Al-Mansur's brother, Al-Abbas
. The motive of the murder was simply out of fear from Abu Muslim's rising popularity to become ruler.
Al-Mansur's claim to hold absolute religious and secular authority further alienated Shiite
s, who during Al-Abbas rule, wanted a Shiite to become Khalifa. Under Al-Mansur, literature and scholarly work in Islam began to manifest in full force.
In contrast to the suppressive Ummayds towards Persians and other groups, Abbasids had greater tolerance for Persian
s and others. When Al-Mansur ruled, roughly 8% of his citizens were Muslims, by the time of his death, the number doubled to 15%. He was succeded by his son, Al-Mahdi