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Signatures of some of the world's most famous people

Photos Logo Photos | Slide 1 of 21: Dr. Albert Einstein is shown seated inside by the window, writing.; A picture taken on March 6, 2018 shows a signed letter by Nobel Prize-winning physicist Albert Einstein dated 1928 concerning the formalisation of the "Third Stage of the Theory of Relativity" on display beneath a magnifying glass at Winner's auction house in Jerusalem, prior to being auctioned later in the night with the rest of a series of nine. / AFP PHOTO / MENAHEM KAHANA        (Photo credit should read MENAHEM KAHANA/AFP/Getty Images)

Albert Einstein (1879–1955)

One of the most noted theoretical physicists of all time, Einstein published the concept of relativity and developed the mass-energy equivalence formula (E = mc2). He won the Nobel Prize in 1921 for discovering the photoelectric effect.

© Bettmann/Getty Images; Menahem Kahana/AFP/Getty Images
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