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1796 BCE
Vaccination
Edward Jenner protected people from disease
https://en.wikipedia.org/wiki/Vaccination -
1450
Printing Press
Johannes Gutenberg allowed literacy to greatly expand
https://en.wikipedia.org/wiki/Printing_press -
Anesthesia
Horace Wells provided a great leap forward for medicine
https://en.wikipedia.org/wiki/Anesthesia -
Telephone
Alexander Graham Bell spread communication across wide areas
https://en.wikipedia.org/wiki/Telephone -
Electric Light
Thomas Edison powered countless social changes
https://es.wikipedia.org/wiki/Electric_Light_Orchestra -
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Gas powered tractor
John Froelich started agricultural mechanization
https://en.wikipedia.org/wiki/Tractor -
Radio and Television
Guglielmo Marconi & John Baird made the world smaller
https://en.wikipedia.org/wiki/Television -
Airplane
Orville and Wilbur Wright allowed people and products to quickly move
https://en.wikipedia.org/wiki/Airplane -
Computer
John Atanasoff, et al. transformed business world; predecessor to the Internet
https://en.wikipedia.org/wiki/Computer
