President Truman announced to the people of America that they successfully developed a hydrogen bomb.
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Harry Truman delivers first‑ever presidential speech on TV.
The United States and Russia signed the Moscow Treaty, agreeing to limit their nuclear arsenals.
Nearly one million people protested for the disarmament of nuclear weapons in Central Park, New York City.
French President Jacques Chirac announced France's nuclear test program had finished.
Citizens of Bikini Island evacuated for nuclear testing.
