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Dewey Decimal System

Can you guess the major categories used by the Dewey Decimal system?
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Last updated: November 14, 2018
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First submittedMay 9, 2016
Times taken13,567
Average score60.0%
Rating4.28
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Category
000
General works, computer science, and information
100
Philosophy and psychology
200
Religion
300
Social sciences
400
Language
500
Pure science
600
Technology
700
Arts & recreation
800
Literature
900
History & geography
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35 Comments
sillie
+1
Level 75
May 10, 2016
You accept "arts" and "geography" alone, but not "psychology".
Quizmaster
+1
Level ∞
May 10, 2016
Fixed!
buck1017
+1
Level 78
May 10, 2016
I always thought 900 was biographies
pitzikat
+4
Level 75
May 10, 2016
biographies are a subsection of history, like fiction is a subsection of literature
Arp2600
+8
Level 89
May 18, 2016
And like religion is a subsection of philosophy. Oh, wait...
EggyGregg
+1
Level 63
Jul 23, 2025
Yeah 92 is Biographies :) and then they are arranged in alphabetical order. But most of them are history.
plattitude
+1
Level 94
May 12, 2016
Consider accepting Natural Sciences for 500s?
GeneralWaffle64
+1
Level 44
May 20, 2016
Can you accept "natural science" and "mathematics" for 500?
McLerristarr
+2
Level 62
May 25, 2016
Surely maths is too specific?
kenpo17
+1
Level 65
Dec 14, 2017
Yes. Mathematics is 510-519, not even close to the entire 500's. You could argue "Math and science" should be acceptable, but just "math" is not correct.
panscedar
+2
Level 67
Jul 18, 2016
Surprised theology didn't work for religion.
Quizmaster
+1
Level ∞
Jul 19, 2016
Theology will work now
VAbumpkin
+1
Level 57
Jul 18, 2016
Lucky guesses. I typed "science" and "pure science" was auto-filled. That made me think of social sciences and computer science.
Jacktheguy
+1
Level 93
Apr 3, 2022
I tried computers but didn't think to try computer science.
zaba2048
+1
Level 71
Jul 18, 2016
You couldn't accept something like computing or ICT could you?
Quizmaster
+1
Level ∞
Jul 19, 2016
Computing will work for 000 now
interopia
+1
Level 90
Jul 18, 2016
Accept social studies for social sciences?
Quizmaster
+1
Level ∞
Jul 19, 2016
Okay
LeeAnna
+1
Level 53
Jul 18, 2016
wow can't believe I remembered the DDS. I guess volunteering in the school library came in handy.
gstridsigne
+1
Level 35
Jul 19, 2016
Music for 700's? please?

Also, Applied Science for 600's? Since that is what Dewey called it himself.

Quizmaster
+1
Level ∞
Jul 20, 2016
Applied Science will work now
kenpo17
+2
Level 65
Dec 14, 2017
Music is just the 780's. If that were accepted, it would only be fair to accept Architecture, Painting, Sculpture, Photography, Sports, and Games as well.
IsleAuHaulte
+2
Level 92
Aug 2, 2018
Could you just accept Google for all categories?
kenpo17
+17
Level 65
Jan 4, 2019
“Google can bring you back 100,000 answers. A librarian can bring you back the right one.” - Neil Gaiman
kiwiquizzer
+1
Level 68
May 20, 2019
I can't believe I got them all. Though I do recall many school holidays spent in the library (Wellington Central Library) while my parents worked.
Sifhraven
+1
Level 76
May 20, 2019
Never heard of the dewey decimal system. Luckily I was on laptop for a change and saw the picture, so I figured it might be book genre. but it took me forever before I had a hit... tried horror detective suspense scifi, then science fiction gave me pure science ( another term that is new to me.) It took so long before I got some answers and they were few and far between. Managed to get 6 right in the end, literature wasnt one though haha
kalbahamut
+1
Level 79
May 23, 2019
Fiction is off in its own section and organized by author's name, not subject.
sacheth9
+2
Level 65
Mar 18, 2020
JetPunk deserves its own section, free from the 900s section! They will be the 1000s-2000s section! Who's with me? I hope Mr. Hostetler agrees with me! (:
jonh
+1
Level 58
Nov 10, 2021
Allow society or sociology for Social Sciences?
Quizmaster
+1
Level ∞
Nov 10, 2021
Okay
Desmond2309
+1
Level 39
Apr 3, 2022
Stop me if I'm wrong, but is Dewey the guy that invented the counting book machine?
johanna9
+1
Level 42
Apr 3, 2022
Tricky, if you don't already know them
sumokitty
+1
Level 90
Apr 4, 2022
Weird that computer science is in the 000s with the reference books and not under Technology.
sumokitty
+1
Level 90
Apr 4, 2022
Also, Dewey was apparently a huge creep. There's a great episode of the Behind the Bastards podcast about him.
TheSinnohman
+1
Level 67
Aug 24, 2025
Anyone else remember the Dewey Decimal Rap on YouTube having been shown it as a kid by your school librarian...?
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