In 1400, German goldsmith Johannes Gutenberg invented the printing press, perhaps the most important moment of the Renaissance. What impact this invention have?

The invention of printing formed a solid foundation for the knowledge revolution, the development of the scientific research movement, and the bridging of the process of communication and civilized and educated communication between societies. Barriers easily penetrated societies through books, until the world finally ended up in one area, as print facilitated communication, as well as other means of communication.

Explanation:

answer: do

the 'italicized phrase' is a noun clause that is used as a direct object.

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