Pope John Paul II proclaimed the day as the first-ever World Youth Day.
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East Pakistan declared its independence from Pakistan, forming Bangladesh.
The US tested the TX-17 thermonuclear bomb for the first time in Bikini Atoll of the Marshall Islands.
Thomas J Martin patented the fire extinguisher.
James Cameron dove into the deepest point of the Marianas Trench, Challenger Deep.
The first edition of the Book of Mormon was published in Palmyra, New York.
