Dewey Decimal System Day, December 10, honors Melvil Dewey and the library classification system he created to maintain our library inventory efficiently. With over 1 billion people visiting public libraries every year, it’s vital to have an easy-to-read system to find the exact location of the books we hope to read.
History of Dewey Decimal System Day
Melvil Dewey, the creator of the Dewey Decimal System, which classifies mainly non-fiction library books and resources, was born on December 10, 1851, in New York. This date has been adopted to celebrate and honor him annually for Dewey Decimal System Day.
Dewey created his proprietary system of library resource classification while working at the Amherst College library at the age of 21. The Dewey Decimal System was first published in 1876 and is now the most widely used system worldwide in over 200,000 libraries in 135 countries. The 20th edition of the system was published in the late 20th century.
The system allows us to locate resources by topic assigned to one of the ten classes. The ten main groups are 000–099, general works; 100–199, philosophy and psychology; 200–299, religion; 300–399, social sciences; 400–499, language; 500–599, natural sciences and mathematics; 600–699, technology; 700–799, the arts; 800–899, literature and rhetoric; and 900–999, history, biography, and geography.
Each class is further categorized into ten hierarchical divisions, then subcategorized into ten sections. The Dewey system’s numerical classification provides a shorthand identification and location tool. The notation lends itself to memory through the constant repetition of a standard pattern — area arrangement, different numbers for particular languages — through parallel subject developments and patterned repetition of traditional subdivisions, such as theory, history, geography, and so on.
It’s hard to believe it’s been over 100 years since the original introduction of the Dewey Decimal System. Today, Americans check out seven items from their local libraries every year, so the need to maintain order continues. The digital age made the beautiful card catalog cabinets housing the index cards listing the decimal classification obsolete. Interestingly, Dewey also helped to create the index cards themselves. The same year he made the decimal system, Dewey founded the Library Bureau, a company selling index cards and filing cabinets.
Dewey Decimal System Day Timeline
Library for African-Americans
The first US library is established for and by African-Americans in Philadelphia.
Public libraries come to life
While the first vision for a national library was suggested in 1556 in the UK, the idea took off in 1753 when one opened to the public as part of the British Museum.
284 – 260 BC
The greatest library
Zenodotus is the first librarian recorded in history at the Library of Alexandria in Egypt, which was one of the ancient world’s largest and most important libraries until it was believed to be burnt down.
668 – 630 BC
The Library of Ashurbanipal in Iraq is believed to be one of the oldest libraries in the world.
Dewey Decimal System Day Faqs
What is 398.2 in the Dewey Decimal System?
The 398.2 section of the library is numbered according to the Dewey Decimal System, which organizes the book collections of public libraries and school libraries into subject categories to make it easier to locate literary materials.
Do they still use the Dewey Decimal System?
Dewey is still the most used book organization system in the world. More than 200,000 libraries in 135 countries currently use the system, according to estimates reported by the Chicago Tribune.
How do you classify books using the Dewey Decimal System?
The Dewey Decimal system is a classification system used by libraries to arrange books via subject. Each book is issued a shelfmark number, usually found on the book’s spine, and set in numerical order.
How To Celebrate Dewey Decimal System Day
- Visit your local library
- See the Dewey Decimal System in action at your local library. Ask one of the librarians for their opinion on how efficient the system is and how many questions they get daily about it when helping patrons find books.
- Take the Dewey Decimal Challenge
- Read one book from each of the 10 Dewey Decimal categories. This is like a book club on steroids! Invite your book club members or general friends to read along.
- Plan a stay at the Library Hotel
- The Library Hotel in Midtown Manhattan, New York, is a boutique hotel themed around the Dewey Decimal System. Each of its ten guest floors is linked to one of the 10 Dewey Decimal categories, with anywhere from 50 – 150 books in each room, with over 6,000 throughout the entire hotel. Yes, you can request a particular category for your stay.
5 Amazing Facts About Global Libraries
- The Old Library
- One of the most beautiful libraries in the world, the Long Room of the Old Library in Dublin, Ireland’s Trinity College, has been a working library since 1732.
- Library of perfumes
- Instead of old, musty-smelling books, the Osmotheque, in Versailles, France, is a library of fragrances with over 3,000 scents.
- The Vatican Apostolic Archive
- Created by Pope Paul V in 1612, the Vatican Secret (now Apostolic) Archive contains the private, papal collection of documents such as correspondence and account books or records.
- Magical reads
- The Conjuring Arts Research Center, a library dedicated to magic, tricks, and related topics, opened in Manhattan, New York, in 2003.
- Bats to the rescue
- A colony of bats resides in the Rococo Library in Portugal, so while the library is closed at night, the bats eat book-damaging bugs!
Why We Love The Dewey Decimal System
- We love to be organized
- Sure, the OCD world thanks Dewey for helping us with our preoccupation with order and exactness, but even those who struggle with alphabetizing couldn’t get around a library without the help of his classification system. Who doesn’t love bringing a little order to chaos?
- We love a good treasure hunt
- If desiring order isn’t your thing, perhaps it’s the thrill of the hunt! If you need to entertain kids — or adults — for a day, pretend you are searching buried treasure and see who can find the books you need fastest!
- We love consistency
- Used in over 135 countries worldwide, the Dewey Decimal System has brought the character to libraries globally. The Arabic numerical system it uses is commonly understood across cultures.