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The Panama Canal was built in 1904. It connected the Pacific and Atlantic ocean so ships can go through.

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The Klondike Gold Rush was in August of 1896 and over 100,000 prospectors were there

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Frontier Fort is know as the old west or the wild west. This was when European settlement happened in early 17th century

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The Indian War started in 1604 and ended in 1924

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The Buffalo Westward Expansion was when people killed their food and made the indians move to a reserve

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The Homestead Act was when several laws were passed so they were allowed ownership.

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This was the first railroad in the united states it went from Iowa to the San Francisco Bay. It was constructed in 1863 and stopped in 1869 and it was 1,912 miles long.

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Ethnic Enclave is were a geographic area with high ethnic concentration, and cultural identity

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Political Machine is political of representative democracies. Authoritative leader or small group command the support the support of a crop.

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Urban Sprawl is when poorly planed, low-Density. Like in 1970 to 1990 Las Vegas, Nevada, Seattle, Washington Had massive influxes and new residents that contributed.

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The Environmental Protection Agency is an independent executive agency tasked with environmental protection matters.

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The Endangered Species Act was took place in 1973 this act protects all imperiled species

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The National Park Service was founded in 1916 to manage all National parks, national monuments, and historical properties.

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The Sun Belt was when workers from Mexico came and the industries and economy boomed.

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The rust belt is when the northeastern and midwestern United States had a decline in industrial and abandon factories.

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Rural to Urban is where count4ry people has moved to a city. China has been one country this has happened to it has increased from 20 percent to 50 percent in the past 20 years.

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The Great Migration was in 1916-1970 and about 6 million African Americans migrated to the United States.

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Bangladesh had the worst pollution in the world as of right now, but over the past 3 years it has gotten better but it still not great.

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Hurricane Katrina was a category 5 hurricane it affected New Orleans, Mississippi, Alabama, and more. This Hurricane caused 1,800 deaths and about 125 Billion dollars in damage.

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The Dust Bowl was caused of severe drought, which caused it to go from Texas all the way to Nebraska, people, livestock, and crops were killed the entire region