Johannes Gutenberg was a German inventor who developed the movable type printing press around 1440, triggering the most profound revolution in information dissemination in human history. Combining goldsmithing skills with printing technology, he invented an oil-based metal movable type system that made mass book production possible.
Gutenberg printed the famous Gutenberg Bible around 1455, the first major book mass-produced with movable type in Europe. His invention directly fueled the Reformation, the Scientific Revolution, and the Enlightenment, breaking the Church's monopoly on knowledge. He has been called 'the most important person of the second millennium.'
