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John Lennon and Paul McCartney in 1963.
Friendships come, friendships go. But 55 years ago today, two young British men met, and it's not overstating things to say they changed the world.
Paul McCartney and John Lennon met for the first time on July 6, 1957, at the St. Peter Church Fete in Woolton, Liverpool, England. Lennon was playing in his band, the Quarry Men, and a mutual friend and sometimes bandmate, Ivan Vaughan, brought McCartney along and introduced the two.
A plaque on the exterior wall of the church, much-photographed by Beatles fans, tells the story of their meeting, and adds "As John recalled, 'that was the day, the day that I met Paul, that it started moving.'"
The church's cemetery is home to the gravestone that inspired "Eleanor Rigby."
You can watch one Beatles fan's tour of the church and cemetery from 2008 in this You Tube video.
And you can read more about the meeting, plus see a photo of Lennon taken that day, at The Beatles Bible.
Are you fascinated by the Beatles' life stories, or is it all about the music for you? What's your favorite Lennon-McCartney collaboration? Tell us on Facebook.