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Melvil Decimal System: 509.42

Wording: Mathematics and Science > General Science > Biography And History > Europe > England & Wales

Dewmoji: đŸ”Ŧ > đŸ”Ŧ > ⌛ > ? > ?

0
Information
196,272
ℹī¸
1
Philosophy and Psychology
182,817
💭
2
Religion
463,619
🙏đŸŊ
3
Social Sciences
1,017,722
đŸ‘Ģ
4
Language
130,463
đŸ’Ŧ
5
Mathematics and Science
322,970
đŸ”Ŧ
6
Technology
751,859
💡
7
Arts and Recreation
695,837
🎨
8
Literature
929,791
📚
9
Biography and History
592,368
đŸ—ŋ
50
General Science
24,934
đŸ”Ŧ
51
Mathematics
61,944
➗
52
Astronomy
17,388
🌌
53
Physics
34,172
🍎
54
Chemistry
22,053
⚗
55
Earth sciences & geology
28,173
🌎
56
Fossils & prehistoric life
6,394
💀
57
Life Sciences
45,977
🐠
58
Botany
17,698
đŸŒŋ
59
Zoology
64,237
đŸŧ
500
General Science
7,566
đŸ”Ŧ
501
Theory And Instruction
2,736
502
Miscellany
1,235
👝
503
Dictionaries And Encyclopedias
623
📕
504
[No longer in use]
154
🤷
505
Periodicals
185
T
506
Societies
293
507
Education And Research
3,497
508
Natural history
5,332
509
Biography And History
3,313
⌛
509.0
By Period
235
T
509.1
Other Geographic Classifications
43
509.2
Biography
862
509.3
Ancient World
88
509.4
Europe
317
509.5
Asia
103
509.6
Africa
9
509.7
North America
142
509.8
South America
31
509.9
Pacific
27
509.40
41
509.41
British Isles -- Ireland and Scotland
52
509.42
England & Wales
43
509.43
Germany and Central Europe
28
509.44
France and Monaco
24
509.45
Italy, Malta, San Marino, And Vatican City
14
509.46
Iberia
14
509.47
Russia and Eastern Europe
29
509.48
Scandinavia
7
509.49
Other Countries
6
509.420
8
509.421
3
509.422509.423
4
509.424
1
509.425
1
509.426
2
509.427
3
509.428
1
509.429

Works under MDS 509.42

1–38 of 38 titles | covers | shelf

Wording

1922 Edition
Modern language
Emoji

"Far Friends"

MDS classes with significant recommendations overlap, excluding ones under the same top-level class.

None

What is MDS?

Melvil stands for "Melvil Decimal System," named after Melvil Dewey, the famous librarian. Melvil Dewey invented his Dewey Decimal System in 1876, and early versions of his system are in the public domain.

More recent editions of his system are in copyright, and the name "Dewey," "Dewey Decimal," "Dewey Decimal Classification" and "DDC" are registered trademarked by OCLC, who publish periodic revisions.

LibraryThing's MDS system is based on the classification work of libraries around the world, whose assignments are not copyrightable. MDS "scheduldes" (the words that describe the numbers) are user-added, and based on public domain editions of the system.

The Melvil Decimal System is NOT the Dewey Decimal System of today. Wordings, which are entered by members, can only come from public domain sources. The base system is the Free Decimal System, a public domain classification created by John Mark Ockerbloom. Where useful or necessary, wording comes from the 1922 edition of the Dewey Decimal System. Language and concepts may be changed to fit modern tastes, or to better describe books cataloged. Wordings may not come from in-copyright sources.

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