Al-Mu'tasim 833–842 CE (jan 1, 833 – jan 1, 842)
Description:
Full Name: Muhammad ibn Harun al-Mu'tasim.
Role: Eighth Abbasid caliph.
Key Achievements:
Founded the city of Samarra as a new capital.
Relied heavily on Turkish slave soldiers (Mamluks), which later led to their increased influence.
Death: Died of natural causes in 842 CE.
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