Expansion and Conflict in the 1800s 7th grade

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What was the primary cause of the Mexican-American War?

Back

The primary cause was President James K. Polk's order for U.S. troops to cross the Nueces River, which escalated tensions with Mexico.

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What was the significance of the California Gold Rush?

Back

The California Gold Rush led to a massive influx of people to California, significantly increasing its population and contributing to its statehood.

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What was Manifest Destiny?

Back

Manifest Destiny was the 19th-century belief that the expansion of the United States across the American continents was both justified and inevitable.

Front

What invention made the Pony Express obsolete?

Back

The telegraph made the Pony Express obsolete by allowing for faster communication over long distances.

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What was the Louisiana Purchase?

Back

The Louisiana Purchase was a land deal in 1803 where the U.S. acquired approximately 827,000 square miles of territory from France, doubling the size of the nation.

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What was the Treaty of Guadalupe Hidalgo?

Back

The Treaty of Guadalupe Hidalgo ended the Mexican-American War in 1848 and resulted in Mexico ceding a large portion of its territory to the U.S.

Front

What role did railroads play in U.S. expansion?

Back

Railroads facilitated the movement of people and goods across the country, promoting settlement and economic growth in the West.

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What was the impact of the Monroe Doctrine?

Back

The Monroe Doctrine established that the Americas were off-limits to further European colonization and interference, asserting U.S. influence in the Western Hemisphere.

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What was the significance of the transcontinental railroad?

Back

The transcontinental railroad connected the eastern U.S. with the Pacific coast, enhancing trade, travel, and communication across the country.

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What was the Trail of Tears?

Back

The Trail of Tears refers to the forced relocation of Native American nations from their ancestral homelands, resulting in the suffering and death of thousands.