While Minister Josiah Strong backed expansionism by claiming it was God's Will, Senator Alfred Beveridge justified it by stating that the emerging businesses demanded imperialism and it was America´s destiny to bring trade, liberty, and civilization to benighted people.
Strong argued that it was America´s manifest destiny to acquire new lands in a race with the other nations to dominate the world and acquire the limited resources. Beveridge argued that the increased business abroad had made it necessary to protect investments overseas.
Spanish conquering Mexico
Effect: Death of 2 continents. Deconstruction of thriving civilisations. 2 brand new continents for Europeans to put to use.
Cause: The Spaniards wondering if the Earth is actually round. During the journey the stumble upon the New World. Another cause is the greed and disrespect of the Spanish colonizers. The American natives were seen as primitive and savage, which the Spanish saw as a reason/excuse for killing their cities, people and culture.
After the slavery was officially abolished in all of the US, the African Americans were quick to move out of the South and migrate massively toward the North. There were several factors as to why this happened. One big factor was that even though the slavery was abolished, the segregation and discrimination continued, so the opportunities in life were very limited. The South was not industrialized, while the North was heavily industrialized, thus the African Americans saw an opportunity to work in the factories instead in the fields. The atmosphere in the North was much better for them, as the majority of the people welcomed them and had no problems with them because of their skin color.
The USA went to war in Korea for three reasons.
The first reason was the ‘Domino theory’. Salami tactics in eastern Europe was not the only place where Communists were coming to power. In the Far East, too, they were getting powerful China turned Communist in 1949. Truman believed that, if one country fell to Communism, then others would follow, like a line of dominoes. He was worried that, if Korea fell, the next ‘domino’ would be Japan, which was very important for American trade. This was probably the most important reason for America’s involvement in the war.
The second reason was just to try to undermine Communism. President Truman believed that capitalism, freedom and the American way of life were in danger of being overrun by Communism. The Truman Doctrine had been one of ‘containment’ – stopping the Communists gaining any more territory. In April 1950 the American National Security Council issued a report recommending that America abandon 'containment' and start 'rolling back' Communism. This led Truman to consider driving the Communists out of North Korea.
Finally, Truman realised the USA was in a competition for world domination with the USSR. By supporting South Korea, America was able to fight Communism without directly attacking Russia.
Hope this helps.