Gunslinger Doc Holliday dies, the X-ray is discovered by accident, John F. Kennedy is elected president, the Florida recount begins, and the "Guitar Hero" craze is born, all on this day.
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Lennon J/Wikimedia Commons
1968: Cynthia Powell Lennon is granted a divorce from John Lennon. The two had been married for six years, but Lennon had left her for Yoko Ono earlier in the year.