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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
Proposed design for the Lincoln Memorial on the Capitol grounds, by Daniel Burnham, ca. 1910.
Proposed design for the Lincoln Memorial on the Capitol grounds, by Daniel Burnham, ca. 1910.
Proposed design for a new Senate Chamber with windows, by Carrère & Hastings, 1924.
Proposed design for a new Senate Chamber with windows, by Carrère & Hastings, 1924.
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.
Medal of Honor for the U.S. Navy/Marine Corps/Coast Guard
Medal of Honor for the U.S. Navy/Marine Corps/Coast Guard