Canada swore in Kim Campbell as the nation’s first female Prime Minister.
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Finland declared war on the Soviet Union after an air raid was launched on Finnish cities.
The rainbow flag was flown for the first time at the San Francisco Gay Freedom Day Parade.
American colonies recorded their first astronomical event after observing a lunar eclipse.
Former police officer Derek Chauvin was sentenced to 22.5 years in prison for the murder of George Floyd.
Barbed wire was patented by Lucien B Smith in Ohio, US.
