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• America 250

America 250

Credit: AP/Charles Krupa

America 250: The first vaccine mandate started with George Washington聽

America 250: 20 years of Zillow, the site that transformed home buying

America 250: Great Seal of the United States and authentication

Iconic American flags on display together marking anniversary of Iwo Jima

America 250: How Cumberland Road became the blueprint for the interstate highway system

America 250: The birth of America鈥檚 first dental school

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America 250: Before oil, America ran on wood, water and muscle

America 250: The rifled musket and the redefinition of infantry warfare

America 250: How Truman moved to desegregate federal workers, including military

Inside the pandemic housing boom: Low rates, high demand and no supply

America 250: Spies during the American Revolution

In the early 1800s, steamboats changed the world forever

Presidential teeth: The truth about George Washington鈥檚 dentures

America 250: The first oil boom: How a well in Pennsylvania changed everything

America 250: Defense full steam ahead