North Macedonia officially joined NATO, becoming the 30th member of the military alliance.
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A 9.2 magnitude earthquake occurred in Alaska.
Two Boeing 747 planes collided in Tenerife, Canary Islands, Spain.
The musical ''Singing in The Rain," directed by Gene Kelly and Stanley Donen, had its first theatrical run.
Harvey Kennedy patented the modern shoelace, which included aglet reinforced tips.
The Gordon Ramsay Plane Food restaurant opened within terminal 5 at London Heathrow Airport.
