North Macedonia officially joined NATO, becoming the 30th member of the military alliance.
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Frank Sinatra recorded his hit 'I'm a Fool to Want You.'
The Gordon Ramsay Plane Food restaurant opened within terminal 5 at London Heathrow Airport.
NASA launched its Mariner 7 space probe from Cape Canaveral atop an Atlas-Centaur rocket.
Martin Luther King's son met the man convicted of killing his father, James Earl Ray.
Spanish explorer Juan Ponce de León accidentally discovered Florida.
