Europe’s Planck spacecraft found evidence that our universe is 13.8 billion years old.
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Glen Bell opened the very first Taco Bell restaurant, in Downey, California.
Central Park designated a section of its grounds as 'Strawberry Fields' to commemorate John Lennon, who was shot dead in his nearby residence.
Game of Thrones star Emilia Clarke shared her experience of fighting for her life after suffering two brain aneurysms during filming.
The first-ever Tweet was published on Twitter.
Reddit was listed for the first time on the New York Stock Exchange.