Answer:
The role of slavery in bringing on the Civil War has been hotly debated for ... African slavery was central to the development of British North America. Although slavery ... to rely on the concept of states' sovereignty as a means of self-protection.
Explanation:
Answer: O Social and political activism in the U.S. Conservation efforts began
Explanation:
Improved relations with the Soviet Union and the PRC are often cited as the most successful diplomatic achievements of Nixon's presidency. ... The reason for opening up China was for the U.S. to gain more leverage over relations with the Soviet Union. Resolving the Vietnam War was a particularly important factor.
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