How bureaucratic structure became more complex during the abbasid dynasty

-Umayyad rulers became corrupt and had alienated non-Arabs

-Descendant of caliph Abu Bakr overthrew the last Umayyad ruler and started a new dynasty (Abu al-abbas)

-Parts of the umayyad empire began to break away

Abbasid Bureaucratic strucure inclued Persians to manage political and tax affairs which eventually will end up on a loss of power of the abbasid.

Explanation:

Abbasid dysnasty is well known for delegating political and tax matters to a Persian bureaucratic class. They were in charge of many labors and did some actions never seen before in previous dynasties such as the inclusion of non-Arabs Muslim as part of their islamic community. However, the bureaucrats eventually got influence enough to get more power even against the Abbasid. This was one of the factors that contributed to the fall of abbasid dynasty.