By God, Gold, and Glory, I assume you mean them as three reasons for exploration. Spreading monotheistic religion (I.e. God) was a common reason for exploration due to the large influence religion (especially Christianity) had on people. Many explorers were missionaries, who attempted to convert people from all over the world to their religion. Secondly, gold (or wealth) was another reason for exploration. Everyone in the past wanted wealth just as much as people today wanted wealth, so the promise of it was almost certain to get people to go and explore (see the California Gold Rush as an example.) Finally, glory was the last major reason for exploration. Everyone wanted to be famous for something as much as people today do, and what better way to do that than to discover a place not yet documented on a map? People who got back form exploration alive were often treated as heroes, mainly because of the kinds of things they had to endure during their trip.
Greater need for protection. C) emergence of new social classes. Population growth and the domestication of plants and animals brought on new cultural changes, such as gender inequality, greater need for protection, and the emergence of new social classes.
America's view in the Vietnam was fear. Fear drove them to participate in the war. Why fear? They were afraid Vietnam would become communist because if they became communist they would support or have the support from the Soviets. If this were to happen Vietnam could've became a missile launching spot for the soviets if America wouldn't have participated.
It's my best explanation from what I remember and from what I think. Hope it's helpful to you.
Answer:In 1947, Salk took a position at University of Pittsburgh, where he began conducting research on polio, also known as infantile paralysis. By 1951, Salk had determined that there were three distinct types of polio viruses and was able to develop a "killed virus" vaccine for the disease.
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