Who invented a system of reading and writing for the blind?

A ) Louis pasteur

B ) Louis Braille ✅

C ) Sir Humphrey Davey

D ) Helen Keller

Related Questions
  1. Who among the following invented bifocal spectacles and lightning rod?
  2. Which of the following radiation has the most energetic photon?
  3. Who discovered first vaccine?
  4. Who discovered DNA?
  5. Treatment through vaccination was founded by -----:
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