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Native American tribes inhabit the land.
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Christopher Columbus lands in the Caribbean, beginning European exploration and colonization.
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Jamestown, the first permanent English settlement, is established in Virginia.
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Colonization continues with the establishment of colonies along the East Coast, including Massachusetts, New York, Pennsylvania, and Virginia.
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French and Indian War ends with British victory, but also leads to increased tensions with the colonies.
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American Revolutionary War results in independence from Britain. The United States is established as a nation in 1776 with the Declaration of Independence.
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The constitution was adopted, creating a federal government with a check and balance system.
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The Louisiana purchase doubles the size of the United States.
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The War of 1812 solidified American independence.
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Civil War ends, preserving the Union and abolishing slavery.
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The Progressive Era reforms.
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World War I involvement.
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The Great Depression begins.
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World War II involvement.
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Civil Rights Movement.
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Space Race and Vietnam War dominate the era, along with social and cultural changes.
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Challenges include the September 11 attacks, wars in Afghanistan and Iraq, and economic recessions.
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Ongoing issues include climate change, and global health challenges.