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Melvil Dewey invented the Dewey Decimal System in 1876.

The Dewey Decimal System makes finding books in libraries much simpler. Dividing books into ten main categories, each with its own subcategories, helps librarians and visitors find exactly what they’re looking for without wasting time.

This system is not only about keeping books in line; it’s about making knowledge accessible to everyone. Over 200,000 libraries in 135 countries still use this system today because it works so well​.