Answer:
The 1960's.
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Countries in Africa were trying to get independence from France, United Kingdom, etc.
Answer:
As more railroads were built, it helped to expand the nation and the West Industries cropped up in the West and used the railroads to link industry to markets in the Eastern part of the nation.
Federalism because Amendments are proposed at a federal level and is ratified at a state level. Why have only 27 Amendments been added to the Constitution? Because of Informal Amendments and how easy it is to informally amend it rather than formally.
It is important for Americans to vote because once said "One vote changed our senate completely ". In other word a single vote can change everything about what is a law and what is not.
Answer:Nullification crisis, in U.S. history, confrontation between the state of South Carolina ... The doctrine of nullification had been advocated by Thomas Jefferson and James ... John C. Calhoun furthered the nullification doctrine in his South Carolina ... of the legislature) to take an oath of support for the ordinance, and threatened contrast
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