Arkansas became the 25th state to join the United States of America.
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John Lennon and Yoko Ono planted acorns for world peace after also mailing acorns to many world leaders to do the same.
Spain held its first democratic elections since 1936.
The US Supreme Court ruled that school is for everyone and banned discrimination based on citizenship.
The first motion picture was filmed using several cameras to capture galloping horses.
Russian spacecraft Vega 2 landed on Venus.