CEO Tim Cook

By bc11520
  • The Sun Dial
    Jan 7, 1300

    The Sun Dial

    (1500-1300 BC)
    Sundial first used in Egypt to measure the time of day by the sun's shadow. Hours are shorter in winter and longer in summer.
  • Period: Jan 7, 1300 to

    Time Evolution

  • THe First Atomic Clock

    THe First Atomic Clock

    National Bureau of Standards (now the National Institute of Standards and Technology, or NIST) builds the first atomic clock, using ammonia.
  • The Watch

    The Watch

    John Harwood
    He was British
    Time is more popular than ever: about half-a-billion watches are sold each year.
  • The Apple Watch

    The Apple Watch

    CEO Tim Cook
    Not Married is actually gay.
    He's alive.

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