Timeline picture 4

Cell Phone

By Lindsey Steber
  • Professor Albert Jahnke

    Professor Albert Jahnke

    Claimed he made the first wireless mobile phone.
  • German railroad tested wireless telephones on the military trains

    German railroad tested wireless telephones on the military trains

  • Train telephones approved

    Train telephones approved

    Only allowed to first class passengers
  • Douglas H.Ring and W. Rae Young

    Douglas H.Ring and W. Rae Young

    proposed the mobile telephones in the cars
  • Martin Cooper

    Martin Cooper

    Created the first handheld mobile phone
  • Apple Inc.

    Apple Inc.

    Announced the first iPhone
  • Modern Cellphone

    Modern Cellphone

    The first iPhone came out in the United States