John Lennon sang about peace and love, but he had a temper. He once got so angry that he said he could have killed a friend.

Forty years ago this week, John Lennon marked his penultimate birthday at age 39. It was October 9, 1979, and Lennon and wife Yoko Ono celebrated the occasion at New York City’s Tavern on the Green.

John Lennon, born 1940 in Liverpool, England, was a British musician and cultural icon known for his music and themes of peace and love. He was a member of the legendary band The Beatles, alongside ...

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