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Melvil Decimal System: 520.93

Wording: Mathematics and Science > Astronomy > Astronomy > Biography And History > Ancient World

Dewmoji: πŸ”¬ > 🌌 > πŸ”­ > πŸ”™ > ?

0
Information
174,688
ℹ️
1
Philosophy and Psychology
162,098
πŸ’­
2
Religion
425,567
πŸ™πŸ½
3
Social Sciences
883,171
πŸ‘«
4
Language
118,317
πŸ’¬
5
Mathematics and Science
274,552
πŸ”¬
6
Technology
640,503
πŸ’‘
7
Arts and Recreation
653,495
🎨
8
Literature
867,539
πŸ“š
9
Biography and History
552,578
πŸ—Ώ
50
General Science
23,120
πŸ”¬
51
Mathematics
51,403
βž—
52
Astronomy
15,251
🌌
53
Physics
26,404
🍎
54
Chemistry
15,658
βš—
55
Earth sciences & geology
24,786
🌎
56
Fossils & prehistoric life
6,061
πŸ’€
57
Life Sciences
36,831
🐠
58
Botany
15,474
🌿
59
Zoology
59,564
🐼
520
Astronomy
3,690
πŸ”­
521
Celestial Mechanics
247
βš™
522
Telescopes and handbooks
977
πŸŒƒ
523
Astronomical objects and astrophysics
7,687
🌌
524
Maps and Observations [No longer in use]
32
525
Earth
392
🌍
526
Geodesy
1,145
🌐
527
Celestial Navigation
94
πŸ—Ί
528
Ephemerides; Nautic almanacs
137
πŸ“’
529
Chronology
850
⏳
520.0
Astronomy
67
520.1
Theory And Instruction
32
520.2
Miscellany
65
520.3
Dictionaries And Encyclopedias
93
520.4
3
520.5
Periodicals
34
520.6
Organizations
7
520.7
Education And Research
96
520.8
Collections
23
520.9
Biography And History
726
πŸ”™
520.90
25
520.91
Other Geographic Classifications
16
520.92
Astronomer Biographies
389
🌌
520.93
Ancient World
69
520.94
Europe
28
520.95
Asia
15
520.96
Africa
1
520.97
North America
17
520.98
South America
5
520.99
Pacific
14
520.930
1
520.931520.932
1
520.933520.934
2
520.935
8
520.936
5
520.937
6
520.938
17
520.939
1

Works under MDS 520.93

1–50 of 65 ( 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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