Beyond abolishing slavery in the united states, the civil war was a pivotal event in american history because it a) was a direct cause of the spanish-american war in 1898. b) established a military alliance between america and great britain. c) established the supremacy of the national government over state governments. d) allowed the united states to spread its borders westward to the mississippi river.

Decline in trade - shift to a rural society

Explanation:

The fall of the Roman Empire brought significant changes in the mode of rule and governance. After the fall, the empire was governed by the warrior kings. The traditional and community guidelines were given priority than the written laws. There was a drastic change in the economic stability of the empire as well. The economy inclined towards the agricultural sector as the result of the collapse of the trade. It was because of the decline in the trade that shifted the empire towards the rural society.