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Melvil Decimal System: 509.4

Wording: Mathematics and Science > General Science > Biography And History > Europe

Dewmoji: 🔬 > 🔬 > ⌛ > ?

0
Information
174,163
ℹ️
1
Philosophy and Psychology
161,561
💭
2
Religion
421,626
🙏🏽
3
Social Sciences
880,262
👫
4
Language
117,843
💬
5
Mathematics and Science
273,666
🔬
6
Technology
638,748
💡
7
Arts and Recreation
650,420
🎨
8
Literature
863,681
📚
9
Biography and History
549,751
🗿
50
General Science
23,045
🔬
51
Mathematics
51,284
➗
52
Astronomy
15,191
🌌
53
Physics
26,306
🍎
54
Chemistry
15,621
⚗
55
Earth sciences & geology
24,690
🌎
56
Fossils & prehistoric life
6,037
💀
57
Life Sciences
36,746
🐠
58
Botany
15,403
🌿
59
Zoology
59,343
🐼
500
General Science
7,081
🔬
501
Theory And Instruction
2,597
502
Miscellany
995
👝
503
Dictionaries And Encyclopedias
570
📕
504
[No longer in use]
122
🤷
505
Periodicals
154
T
506
Societies
265
507
Education And Research
3,129
508
Natural history
5,094
509
Biography And History
3,038
⌛
509.0
By Period
213
T
509.1
Other Geographic Classifications
44
509.2
Biography
791
509.3
Ancient World
77
509.4
Europe
287
509.5
Asia
86
509.6
Africa
8
509.7
North America
132
509.8
South America
29
509.9
Pacific
22
509.40
41
509.41
British Isles -- Ireland and Scotland
49
509.42
England & Wales
43
509.43
Germany and Central Europe
24
509.44
France and Monaco
18
509.45
Italy, Malta, San Marino, And Vatican City
13
509.46
Iberia
10
509.47
Russia and Eastern Europe
24
509.48
Scandinavia
7
509.49
Other Countries
5

Works under MDS 509.4

1–50 of 249 ( next )titles | covers | shelf
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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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