Which of the events listed do you think was most important? explain. 1400 1600?

The Gutenberg press because it could produce books much faster than a person could. Also, it replicate religious works which makes it more affordable.

Explanation:

Gutenberg was a German printer, publisher etc. he was the one that introduced printing to Europe, a mechanical movable type printing introduced in the year 1439. The printer uses oil based ink. It could print in large volume and was used to print text books and religious materials.

in all honesty, it really hasn't. except that hitler killed himself.

the answer is option a.