The Abbasid Dynasty was known for

The Abbasids are known for accepting non-Arab converts to Islam as members of the Muslim community with greater equality than under some earlier rulers. Their capital was Baghdad, not Jerusalem, and their rule was not chiefly focused on expansion in the West. The Mongols eventually conquered Baghdad in 1258, but this happened centuries after the Abbasid dynasty began, so “quickly conquered” is misleading.

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