The Civil War in the United States began in 1861, after decades of simmering tensions between northern and southern states over slavery, states’ rights and westward expansion.
The policy of promoting industry in the U.S. by adoption of a high protective tariff and of developing internal improvements by the federal government.
Explanation:
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Americans became more alike in their purchasing
The term for the significant growth in population following WWII is the "baby boom." We also now refer to those people as "baby boomers"
