The Yellowstone National Park Protection Act went into law, making it the first National Park in the world.
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Canada legally declared women as 'persons.'
The Outer Space Treaty was signed to prevent the use of nuclear weapons being utilized in space.
California Governor Jerry Brown passed a bill to legalize assisted suicide for terminally ill persons.
The Supreme Court of the United States decided on the rule that police cannot examine the contents of a cell phone without a search warrant.
President Lyndon B signed the National Traffic and Motor Safety Act, which set new standards for vehicles and drivers.
