Colombia’s militant group FARC agreed to lay down their weapons after 52 years of guerilla warfare.
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The US SM-65 Atlas missile completed the first successful intercontinental ballistic missile launch.
China performed its first thermonuclear test.
North Korea performed a controversial intercontinental ballistic missile test.
North Korea tested its first intercontinental ballistic missile (ICBM).
British Prime Minister Winston Churchill went public that Britain had its first atomic bomb and planned to test it in Australia by the end of the year.
