The Dewey Decimal System (Melvil Dewey)

The Dewey Decimal System, created by Melvil Dewey in 1876, is a method for organizing library books and materials. It categorizes knowledge into ten main classes, each assigned a three-digit number, ranging from 000 to 999. For instance, books about science might fall under the 500s, while those on history are found in the 900s. This system allows for efficient shelving and easy retrieval of information, enabling library users to locate topics of interest quickly. It remains widely used in libraries around the world, facilitating a structured approach to organizing vast volumes of information.