Final answer:
Moveable Metal Type, credited to Johannes Gutenberg, revolutionized the printing industry, enabling mass reproduction of written materials.
Explanation:
Moveable Metal Type, credited to Johannes Gutenberg, revolutionized the printing industry by enabling the mass reproduction of written materials. Gutenberg's invention of the printing press with movable type allowed for quicker and more efficient production of books, newspapers, and other printed materials, significantly impacting publishing and journalism during the 15th century.
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