• Alexander C. R. Hammond

Heroes of Progress, Pt. 14: Johannes Gutenberg

Introducing Johannes Gutenberg the goldsmith and inventor, who created the first metal movable-type printing press. Gutenberg’s inventions inlcuded a process for mass-producing movable type, the use of oil-based ink for printing books, adjustable molds, mechanical movable type and the use of a wooden printing press similar to the agricultural screw presses of that time.

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