The US tested the TX-17 thermonuclear bomb for the first time in Bikini Atoll of the Marshall Islands.
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Thomas J Martin patented the fire extinguisher.
Pope John Paul II proclaimed the day as the first-ever World Youth Day.
James Cameron dove into the deepest point of the Marianas Trench, Challenger Deep.
Michelle Obama's memoir 'Becoming' surpassed 10 million copies sold after four months of circulation.
A Dutch art investigator recovered Pablo Picasso's stolen 'Buste de Femme' painting. It had been missing for 20 years.