Periodization often helps historians study the past in that it compartmentalized the past into more easily "manageable" segments, which can help the historian better understand cause and effect relationships.
Answer:
Roosevelt believed that the United States had a duty to uphold a balance of power in international relations and seek to reduce tensions among the great powers. He was also adamant in upholding the Monroe Doctrine, the American policy of opposing European colonialism in the Western Hemisphere.
Explanation:
It helped bring the South back.
It ended the war.
IT FREED THE SLAVES
