British Prime Minister Boris Johnson was taken to hospital after testing positive for COVID-19.
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The US Air Force accidentally bombed the Belgian town of Mortsel.
North Korea launched the infamous Kwangmyŏngsŏng-2 satellite.
One hundred thousand rioters gathered at Tiananmen Square in Beijing to protest against the Chinese government.
North Korea performed a controversial intercontinental ballistic missile test.
Pope Paschal I crowned Lothair I as the Emperor of Italy.
