Who created a printing machine in the mid-1400s?
A) Ts'aiLun
B) René de Réaumur
C) Johannes Gutenberg
D) Nicholas Louis Robert
Answer: C
Explanation: A) Incorrect. The first recorded efforts of papermaking were by Ts'aiLun.
B) Incorrect. René de Réaumur suggested that paper could be created using wood.
C) Correct. Johannes Gutenberg created a printing machine in the mid-1400s.
D) Incorrect. Nicholas Louis Robert created the first papermaking machine.
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