Pope John Paul II proclaimed the day as the first-ever World Youth Day.
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James Cameron dove into the deepest point of the Marianas Trench, Challenger Deep.
Ariana Grande released her first single, 'The Way.'
The battle of Iwo Jima was won by the US after a month and a week of fighting.
The first edition of the Book of Mormon was published in Palmyra, New York.
Sir Henry Thompson conducted the UK's first cremation on the corpse of Mrs. Jeannette C. Pickersgill.
