CNN made its debut as the first 24-hour news channel.
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The Philadelphia Zoo opened. At the time, it was the only zoo in the 'New World.'
The Heimlich Maneuver was published in an article for the first time.
642 million people voted in India's general election, setting the record for the world’s largest election.
Anne Boleyn was crowned the Queen of England at Westminster Abbey.
Kentucky became the 15th state to join the United States of America.
