I-121-class submarine

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I-121-class submarine

Quality:

I-121-class submarine - 1st-class Japanese submarine type. Article “I-121-class submarine” in English Wikipedia has 42.9 points for quality (as of July 1, 2025). The article contains 44 references and 6 sections.

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

Since the creation of article “I-121-class submarine”, its content was written by 28 registered users of English Wikipedia and edited by 81 registered Wikipedia users in all languages.

The article is cited 145 times in English Wikipedia and cited 502 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #149748 in June 2017
  • Global: #186001 in June 2017

The highest popularity rank from 2008:

  • Local (English): #966605 in March 2015
  • Global: #608980 in June 2009

There are 7 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)
I-121-class submarine
42.8891
2Vietnamese (vi)
I-121 (lớp tàu ngầm)
37.6236
3French (fr)
Classe I-121
31.1368
4German (de)
Kiraisen-Klasse
20.4019
5Japanese (ja)
伊百二十一型潜水艦
10.5792
6Russian (ru)
Подводные лодки типа I-121
8.3082
7Persian (fa)
زیردریایی کلاس آی-۱۲۱
3.0119
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 "I-121-class submarine" in all the time
#LanguagePopularity awardRelative popularity
1Japanese (ja)
伊百二十一型潜水艦
94 804
2English (en)
I-121-class submarine
69 402
3Russian (ru)
Подводные лодки типа I-121
15 761
4Vietnamese (vi)
I-121 (lớp tàu ngầm)
2 221
5French (fr)
Classe I-121
1 703
6German (de)
Kiraisen-Klasse
1 094
7Persian (fa)
زیردریایی کلاس آی-۱۲۱
863
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 "I-121-class submarine" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
I-121-class submarine
303
2Japanese (ja)
伊百二十一型潜水艦
284
3Russian (ru)
Подводные лодки типа I-121
53
4German (de)
Kiraisen-Klasse
38
5Vietnamese (vi)
I-121 (lớp tàu ngầm)
21
6French (fr)
Classe I-121
12
7Persian (fa)
زیردریایی کلاس آی-۱۲۱
0
More...

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

The highest AI

Language versions of the article "I-121-class submarine" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
I-121-class submarine
28
2Japanese (ja)
伊百二十一型潜水艦
15
3Vietnamese (vi)
I-121 (lớp tàu ngầm)
13
4French (fr)
Classe I-121
10
5Russian (ru)
Подводные лодки типа I-121
9
6German (de)
Kiraisen-Klasse
6
7Persian (fa)
زیردریایی کلاس آی-۱۲۱
0
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 "I-121-class submarine" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Japanese (ja)
伊百二十一型潜水艦
1
2German (de)
Kiraisen-Klasse
0
3English (en)
I-121-class submarine
0
4Persian (fa)
زیردریایی کلاس آی-۱۲۱
0
5French (fr)
Classe I-121
0
6Russian (ru)
Подводные лодки типа I-121
0
7Vietnamese (vi)
I-121 (lớp tàu ngầm)
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 "I-121-class submarine" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
I-121-class submarine
145
2French (fr)
Classe I-121
128
3Japanese (ja)
伊百二十一型潜水艦
120
4Vietnamese (vi)
I-121 (lớp tàu ngầm)
75
5Russian (ru)
Подводные лодки типа I-121
23
6Persian (fa)
زیردریایی کلاس آی-۱۲۱
7
7German (de)
Kiraisen-Klasse
4
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
deGerman
Kiraisen-Klasse
enEnglish
I-121-class submarine
faPersian
زیردریایی کلاس آی-۱۲۱
frFrench
Classe I-121
jaJapanese
伊百二十一型潜水艦
ruRussian
Подводные лодки типа I-121
viVietnamese
I-121 (lớp tàu ngầm)

Popularity rank trends

Best Rank English:
#966605
03.2015
Global:
#608980
06.2009

AI rank trends

Best Rank English:
#149748
06.2017
Global:
#186001
06.2017

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on I-121-class submarine from Wikipedia articles about List of ships of the Imperial Japanese Navy, Japanese submarine I-124, Minelayer, Imperial Japanese Navy and List of Japanese Navy ships and war vessels in World War II. Whereas reading the article about I-121-class submarine people most often go to Wikipedia articles on Japanese submarine I-121, Japanese submarine I-122, Japanese submarine I-123, Japanese submarine I-124 and SM U-125.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 28 February 2026

On 28 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Ali Khamenei, Iran, Ruhollah Khomeini, Jeffrey Epstein, Supreme Leader of Iran, Mohammad Reza I of Iran, 2026 Israeli–United States strikes on Iran, Neil Sedaka, Masoud Pezeshkian, Resident Evil Requiem.

In English Wikipedia the most popular articles on that day were: Ali Khamenei, 2026 Israeli–United States strikes on Iran, Neil Sedaka, Iran, Ruhollah Khomeini, Iran–Israel conflict, Supreme Leader of Iran, Scream 7, Elimination Chamber (2026), World War III.

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