How the South should be readmitted to the Union-- splits occurred between moderate Republicans and Radical Republicans.
Moderate Republicans believed the South should be brought in quickly and allowed to take sovereignty of their states back as soon as possible. They did not want harsh punishments and wanted to quickly transition back to "normal". The Radical Republicans wanted to not only prevent Southern Democrats from regaining control too quickly, but also wanted to require loyalty pledges to reenter the Union. Radicals also wanted to ensure full citizenship and voting rights to blacks which as not a focus or even a desire of moderates.
B) California became a free state
The United States annexes Hawaii in 1900 should be categorized as imperialism. Imperialism is a countries policy of creating an empire. It also maintains control to expand their control of raw materials and the world market. This is done by conquering other countries and establishing them as colonies. To improve trade with the United States, Kalakaua allowed them a limited use of Pearl Harbor as a naval base in 1887. Hawaii’s only ruling queen came to power in 1891. Liliuokalani tried to gain power by changing the laws of the constitution. In 1893, a revolution brought out the Republic of Hawaii. The United States annexed Hawaii in 1898 and two years later made it an official U.S. territory. All Hawaiians became citizens of the United States.
2. The United States declines to give aid to Hungarian patriots in 1849 should be categorized as Isolation. Isolationism is a national policy of avoiding political or economic entanglement with other countries. It is often used to describe the political climate of the United States in the 1930s. Isolationism does not try to close off the United States from the world's cultures and economies. Isolationism may support military actions that maintain the independent skills of the United States. In 1848, the US would not have even imagined getting involved in European crises. It went against everything that was believed at the time. We would have had no way of providing any help. Our Army and Navy were extremely small and we had very little diplomatic influence in Europe. We declined aid to the Hungarians because we did not want to harm our country.
3. The United States proposes the Open Door Policy in 1899 should be categorized as Intervention. The theory of interventionism examines the nature and justifications of interfering with another policy or with choices made by individuals. Interventionism is characterized by the use of force to change a political<span> </span>
The system of escape routes and hiding places for runaway slaves was known as Underground Railroads.
In the US, slavery led to the creation of such escape routes and safe houses in order to help slaves escape and lead a normal life after that. They would either run to Canada or free states within America which abolished slavery. One of the most famous leaders was Harriet Tubman.