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Melvil Decimal System: 509.5

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

Dewmoji: πŸ”¬ > πŸ”¬ > βŒ› > ?

0
Information
174,374
ℹ️
1
Philosophy and Psychology
161,779
πŸ’­
2
Religion
423,184
πŸ™πŸ½
3
Social Sciences
881,318
πŸ‘«
4
Language
118,009
πŸ’¬
5
Mathematics and Science
273,977
πŸ”¬
6
Technology
639,279
πŸ’‘
7
Arts and Recreation
651,427
🎨
8
Literature
865,204
πŸ“š
9
Biography and History
550,807
πŸ—Ώ
50
General Science
23,066
πŸ”¬
51
Mathematics
51,320
βž—
52
Astronomy
15,210
🌌
53
Physics
26,331
🍎
54
Chemistry
15,630
βš—
55
Earth sciences & geology
24,732
🌎
56
Fossils & prehistoric life
6,049
πŸ’€
57
Life Sciences
36,778
🐠
58
Botany
15,429
🌿
59
Zoology
59,432
🐼
500
General Science
7,088
πŸ”¬
501
Theory And Instruction
2,602
502
Miscellany
996
πŸ‘
503
Dictionaries And Encyclopedias
572
πŸ“•
504
[No longer in use]
121
🀷
505
Periodicals
154
T
506
Societies
265
507
Education And Research
3,130
508
Natural history
5,096
509
Biography And History
3,042
βŒ›
509.0
By Period
213
T
509.1
Other Geographic Classifications
44
509.2
Biography
792
509.3
Ancient World
77
509.4
Europe
287
509.5
Asia
86
509.6
Africa
8
509.7
North America
133
509.8
South America
29
509.9
Pacific
22
509.50
1
509.51
China and Korea
44
509.52
Japan
12
509.53509.54
Indian Subcontinent
15
509.55509.56
2
509.57509.58
Central Asia
1
509.59
Southeast Asia
5

Works under MDS 509.5

1–50 of 79 ( 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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