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[–] doggone [OP] 0 points (+0|-0)

https://en.wikipedia.org/wiki/Centennial_Exposition

Consumer products first displayed to the public include:

  • Alexander Graham Bell's telephone
  • Remington Typographic Machine (typewriter)
  • Heinz Ketchup
  • Wallace-Farmer Electric Dynamo, precursor to electric light
  • Hires Root Beer
  • Kudzu erosion control plant species