Inventor of the printing press, Gutenberg perhaps created the most successful and life changing invention in our history.
(The internet might have taken that spot but was it really invented? Plus, you could argue the internet is a huge extension of the printing press).
Gutenberg’s printing press made it easy for people to spread ideas. Ideas no longer belonged to a specific class of people but anyone who could read. It changed the spread of information and gave more opportunities to an entire population.