List of lost inventions

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This is a list of lost inventions.


Questionable examples[edit]

See also[edit]


  1. ^ Ancient Romans Made World's Most Durable Concrete, The Washington Post, July 4, 2017
  2. ^ Did the ancient Romans use a natural herb for birth control?, The Straight Dope, October 13, 2006
  3. ^ "The Sloot Digital Coding System is not about compression". September 17, 2006.