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Jun 24th, 2018
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  1. History of Hearing Aids
  2. -----------------------
  3. 1600-1799
  4. Sailors used ear trumpets to communicate with each other over
  5. long distances.
  6.  
  7. 1800-1899
  8. Auricles and Cornets wereintroduced, similar to the ear trumpet
  9. but smaller.
  10.  
  11. 1900-1920
  12. Electrical Hearing Aids entered the market. They were smaller than
  13. Auricles and Cornets but still relatively large.
  14.  
  15. 1921-1955
  16. Hearing aids finally moved to inside the ear
  17.  
  18. 1956-Present
  19. Hearing aids have gotten smaller and more functional, and their batteries
  20. now last much longer. However, price has gone up.
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