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Thomas Edison
Invented the Phonograph -
Thomas Edison
Invented the light bulb -
Thomas Edison
Invented the stock printer! -
Guglielmo Marconi
Succesfully transmitted radio waves -
Guglielmo Marconi
Invented morse code -
MArie Curie Radium
The Curies announced the existence of a second element they named radium. -
Einsteins theory of relativity
Theory of relativity is created -
Jonas Salk
Handed out polio Vaccines