The 23rd Amendment was ratified, allowing residents of Washington, DC to vote in US elections.
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The Standard Time Act was signed into US law, introducing Daylight Saving Time.
The return of escaped slaves in the US became compulsory after congress introduced the fugitive slave law.
The Yellowstone National Park Protection Act went into law, making it the first National Park in the world.
The United States Supreme Court declared that it was unlawful to discriminate in interstate travel.
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.
