SpaceX’s Crew Dragon Demo-2 launched from the Kennedy Space Center in Florida.
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Spain officially became the 16th member of NATO.
The US Mariner 9 was launched – it went on to become the first satellite to orbit Mars.
Love Me Do by The Beatles hit number one on US charts.
Henry III became the King of France.
Donald Trump was found guilty of 34 felony counts of falsified business records.