China performed its first thermonuclear test.
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The world's first atomic bomb was detonated.
North Korea performed a controversial intercontinental ballistic missile test.
Adolf Hitler signed the order to develop the V-2 rocket as a weapon during World War II.
Nearly one million people protested for the disarmament of nuclear weapons in Central Park, New York City.
The largest US underground bomb was detonated on Amchitka Island, a remote Alaskan island.
