Because of floods,sunami, and earthquake
· Invasions by Barbaric tribes
· Economic troubles and over-reliance on slave labor
· The rise of the Eastern Empire
· Over-expansion and military overspending
· Government corruption and political instability
· The arrival of the Huns and the migration of barbarian tribes
· Christianity and the loss of traditional values
· Weakening of Roman legions
Hoped this helped.
~Bob Ross®
Answer:
the era which was spanned since 1890s to1920s for addressing the problems caused by industrialization, urbanization, immigration,and political corruption in US.