Repression of the Shiite population was particularly high at the time due to their large size and growing power .
For most of his life , the Abbasid Caliph , Al - Mu'tamid , placed restrictions on him after the death of his father .
Repression of the Shiite population was particularly high at the time due to their large size and growing power .
For most of his life , the Abbasid Caliph , Al - Mu'tamid , placed restrictions on him after the death of his father .