The US tested the TX-17 thermonuclear bomb for the first time in Bikini Atoll of the Marshall Islands.
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The first edition of the Book of Mormon was published in Palmyra, New York.
Pope John Paul II proclaimed the day as the first-ever World Youth Day.
The first photo of the moon was taken by John Draper in New York City.
Driving tests were introduced in the UK for the first time.
East Pakistan declared its independence from Pakistan, forming Bangladesh.
