The Yellowstone National Park Protection Act went into law, making it the first National Park in the world.
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President Harry Truman signed the National Security Act.
Franklin D. Roosevelt signed the Social Security Act, creating a government pension system for the retired.
US President Herbert Hoover slashed his salary by 20% and his cabinet members by 15% due to the Economic Act signed on June 30, 1932.
France became the first country in the world to include access to abortion in its constitution.
The Scopes Monkey Trial took place in Dayton, Tennessee.
