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A new wave of European immigrants, fleeing hardships and lured by America’s promise of prosperity, expanded the population
A new wave of European immigrants, fleeing hardships and lured by America’s promise of prosperity, expanded the population
Photographer Lewis Hine documented child labor to urge passage of legislation protecting children from abuse
Photographer Lewis Hine documented child labor to urge passage of legislation protecting children from abuse
In 1913, Congress authorized dam construction in Yosemite’s Hetch Hetchy Valley, despite objections of conservationists
In 1913, Congress authorized dam construction in Yosemite’s Hetch Hetchy Valley, despite objections of conservationists
Pittsburgh’s steel mills propelled industrial prosperity, but left its residents living in smoke and smog
Pittsburgh’s steel mills propelled industrial prosperity, but left its residents living in smoke and smog
With men away fighting in World War II, millions of women entered the workforce in the 1940s.
With men away fighting in World War II, millions of women entered the workforce in the 1940s.
American soldiers in Paris celebrated Japan’s surrender, which ended World War II in August 1945.
American soldiers in Paris celebrated Japan’s surrender, which ended World War II in August 1945.
Senators assemble outside the Capitol for a ceremony in September 1918. The Senate would soon become embroiled in a bitter debate over ratification of the Treaty of Versailles.
Senators assemble outside the Capitol for a ceremony in September 1918. The Senate would soon become embroiled in a bitter debate over ratification of the Treaty of Versailles.
Map showing states that gained and lost representatives due to reapportionment in the 1930 census.
Map showing states that gained and lost representatives due to reapportionment in the 1930 census.