Canada swore in Kim Campbell as the nation’s first female Prime Minister.
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North Korea sent 75,000 soldiers to invade South Korea, which would start the Korean War.
The Diary of a Young Girl by Anne Frank was published.
The Supreme Court of the United States decided on the rule that police cannot examine the contents of a cell phone without a search warrant.
Finland declared war on the Soviet Union after an air raid was launched on Finnish cities.
Barbed wire was patented by Lucien B Smith in Ohio, US.