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.
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Before the invention of the cotton gin only long thread cotton could be profitably grown. The long thread cotton could only be grown in a limited geographic locations.
The cotton gin allowed short thread varieties of cotton to be profitably grown throughout the south. This increase in cotton production lead to the expression that cotton is king. The southern plantation owners became rich. The economy of the south became depended on cotton.
In the north the availability of large amounts of now relatively cheap cotton made textile mills a possibility in the north. These textile mills utilizing cotton from the south were the foundation of the industrialization of the north, providing great wealth and attracting immigrants from Europe.
The cotton gin changed the economy of the south to a mainly agriculture economy based on cotton and slavery.
The cotton gin changed the economy of the north to a mainly industrial factory based economy requiring educated workers from European nations.
The southern economy wanted low import duties to purchase manufactured goods with their agricultural products.
The northern economy wanted high import duties to protect their new industries from European competition
Gaul was added to the roman empire under Caesar's h
Challenges:
surviving adulthood (lack of modern medicine, plagues, violence of medieval times) And everything was expensive so many faced debt even though they were nobles. (War was also an issue during those times)
Benefits:
They lived more structured lives, enjoyed more wealth, had greater availability to weapons and armor, medicines and they could employ fighters. They also had better clothes, food, power and did not have to preform hard labor!