The FBI publicly confirmed that they believed COVID-19 originated in a lab in Wuhan, China.
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The US Air Force launched the Discoverer 1 reconnaissance satellite.
The first killer whale calf was born in captivity at Marineland in Los Angeles, California.
Swedish Prime Minister, Olof Palme, was shot at point-blank range on the busiest road in Sweden.
The UN released a report warning that 14% of Earth's species face a very high risk of extinction.
The twisted ladder structure of DNA was discovered.
