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Content: He also built the city of constantinople
What were some reasons for the decline and fall of the Roman Empire? -Christianity's emphasis on a spiritual kingdom weakened Roman military virtues. -Traditional Roman values declined as non-Italians gained prominence in the empire. -Lead poisoning through leaden water pipes and cups caused a mental decline in the population. -Plague wiped out one-tenth of the population. -Rome failed to advance technologically due to slavery. -Rome could not create a workable political system. Why do many historians date the fall of the Roman Empire at 476? Historians, the deposition of Romulus signaled the end of the Roman Empire in the west. Of course, this is only a symbolic date because much of direct imperial rule had already been lost in the course of the fifth century.