Old quantum theory

en

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Old quantum theory

Quality:

Old quantum theory - set of heuristic corrections to classical physics that served as a predecessor to modern quantum mechanics (1900–1925). Article "Old quantum theory" in English Wikipedia has 46.9 points for quality (as of July 1, 2025). The article contains 26 references and 15 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that language version.

Since the creation of article "Old quantum theory", its content was written by 111 registered users of English Wikipedia and edited by 376 registered Wikipedia users in all languages.

The article is cited 312 times in English Wikipedia and cited 1726 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #42726 in May 2009
  • Global: #32655 in September 2015

The highest popularity rank from 2008:

  • Local (English): #130233 in May 2009
  • Global: #113494 in October 2012

There are 19 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Old quantum theory
46.8511
2Ukrainian (uk)
Стара квантова теорія
43.9899
3Russian (ru)
Старая квантовая теория
42.4874
4Chinese (zh)
舊量子論
41.4886
5Turkish (tr)
Eski kuantum teorisi
34.8419
6Vietnamese (vi)
Thuyết lượng tử cũ
34.2846
7Spanish (es)
Teoría cuántica antigua
29.0482
8Italian (it)
Teoria dei quanti
26.0696
9Korean (ko)
초기 양자론
25.5555
10Catalan (ca)
Antiga teoria quàntica
24.4471
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Old quantum theory" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Old quantum theory
907 126
2French (fr)
Théorie des quanta
536 648
3Italian (it)
Teoria dei quanti
203 294
4Chinese (zh)
舊量子論
104 014
5Japanese (ja)
前期量子論
91 581
6Dutch (nl)
Kwantumtheorie
77 178
7Arabic (ar)
نظرية الكم القديمة
58 051
8Spanish (es)
Teoría cuántica antigua
49 727
9Russian (ru)
Старая квантовая теория
47 341
10Portuguese (pt)
Antiga teoria quântica
44 394
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "Old quantum theory" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Old quantum theory
4 357
2French (fr)
Théorie des quanta
1 413
3Italian (it)
Teoria dei quanti
621
4Russian (ru)
Старая квантовая теория
456
5Polish (pl)
Wczesna teoria kwantowa
385
6Chinese (zh)
舊量子論
334
7Dutch (nl)
Kwantumtheorie
264
8Japanese (ja)
前期量子論
211
9Spanish (es)
Teoría cuántica antigua
105
10Turkish (tr)
Eski kuantum teorisi
54
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Old quantum theory" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Old quantum theory
111
2French (fr)
Théorie des quanta
64
3Italian (it)
Teoria dei quanti
50
4Chinese (zh)
舊量子論
27
5Japanese (ja)
前期量子論
20
6Ukrainian (uk)
Стара квантова теорія
20
7Turkish (tr)
Eski kuantum teorisi
15
8Portuguese (pt)
Antiga teoria quântica
10
9Russian (ru)
Старая квантовая теория
10
10Spanish (es)
Teoría cuántica antigua
9
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "Old quantum theory" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Italian (it)
Teoria dei quanti
1
2Polish (pl)
Wczesna teoria kwantowa
1
3Arabic (ar)
نظرية الكم القديمة
0
4Catalan (ca)
Antiga teoria quàntica
0
5English (en)
Old quantum theory
0
6Spanish (es)
Teoría cuántica antigua
0
7Persian (fa)
نظریه کوانتومی قدیمی
0
8French (fr)
Théorie des quanta
0
9Indonesian (id)
Teori kuantum lama
0
10Japanese (ja)
前期量子論
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Old quantum theory" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Old quantum theory
312
2Chinese (zh)
舊量子論
202
3Arabic (ar)
نظرية الكم القديمة
191
4French (fr)
Théorie des quanta
137
5Portuguese (pt)
Antiga teoria quântica
125
6Korean (ko)
초기 양자론
114
7Russian (ru)
Старая квантовая теория
99
8Persian (fa)
نظریه کوانتومی قدیمی
97
9Italian (it)
Teoria dei quanti
90
10Polish (pl)
Wczesna teoria kwantowa
81
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2025:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2025:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
نظرية الكم القديمة
caCatalan
Antiga teoria quàntica
enEnglish
Old quantum theory
esSpanish
Teoría cuántica antigua
faPersian
نظریه کوانتومی قدیمی
frFrench
Théorie des quanta
idIndonesian
Teori kuantum lama
itItalian
Teoria dei quanti
jaJapanese
前期量子論
koKorean
초기 양자론
nlDutch
Kwantumtheorie
plPolish
Wczesna teoria kwantowa
ptPortuguese
Antiga teoria quântica
ruRussian
Старая квантовая теория
simpleSimple English
Old quantum theory
trTurkish
Eski kuantum teorisi
ukUkrainian
Стара квантова теорія
viVietnamese
Thuyết lượng tử cũ
zhChinese
舊量子論

Popularity rank trends

Best Rank English:
#130233
05.2009
Global:
#113494
10.2012

AI rank trends

Best Rank English:
#42726
05.2009
Global:
#32655
09.2015

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Old quantum theory from Wikipedia articles about Quantum mechanics, Niels Bohr, Werner Heisenberg, Max Planck and Bohr model. Whereas reading the article about Old quantum theory people most often go to Wikipedia articles on Quantum mechanics, Bohr model, Heuristic, Quantum physics and Bohr-Sommerfeld atom model.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

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About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information