8. The Sassanid Empire
The Sassanid Empire’s decline was marked by elite excess, court intrigue, and social disparity, which collectively weakened the state and left it vulnerable to Arab conquest in the 7th century. The nobility’s indulgence in luxury and power struggles among court factions diverted attention from effective governance and military preparedness. This internal discord, coupled with economic mismanagement and heavy taxation, exacerbated social inequalities and unrest. These internal weaknesses, combined with external pressures, led to the empire’s rapid downfall following the Arab invasions. (en.wikipedia.org)
