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<span>Westward Expansion and the American Civil War. To many nineteenth century Americans, the expansion of slavery into Western territories caused a great deal of controversy. ... These fears were realized when the expansion of slavery into western territories entered Congressional debates</span>
Depends on your browser, a bookmark or favorite is a webpage that you visit repetedly and so you dont need to type in the URL all the time, for example on google chrome i can press the star on the URL to the right and make a bookmark.
They would be natural resources.
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Since 1800's, industrialization has changed land use and led to the growth of large cities in many countries. During this industrial era, population and production was emphasized where the invention of railroads increase the opportunity to travel or go to other places in reduced cost. In addition, manufacturing companies has began its operation, permitting migration from rural to urban areas that develop into great cities.