The invention attributed to Johannes Gutenberg is the movable type printing press, which revolutionized the production of books and the spread of information. Around 1440, Gutenberg developed his printing technology, allowing for the mass production of texts, particularly the Bible. This innovation drastically reduced the cost of books, making literature accessible to a broader audience and promoting literacy. The printing press enabled the rapid dissemination of ideas during the Renaissance and Reformation, contributing to educational and cultural advancements that shaped modern society.