Multiple choice technology web technology

what did Johannes Gutenberg invent ?

  1. cotton gin

  2. morse code

  3. printing machine

  4. microscope
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Johannes Gutenberg invented the printing press with movable type around 1440, revolutionizing mass communication. The cotton gin was invented by Eli Whitney, morse code by Samuel Morse, and the microscope was developed by multiple scientists including Antonie van Leeuwenhoek.

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