U-1221

pt

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U-1221

Quality:

U-1221 - 1943 Type IXC/40 submarine. Article “U-1221” in Portuguese Wikipedia has 12.9 points for quality (as of July 1, 2025). The article contains 2 references and 2 sections.

This article has the best quality in Hungarian Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “U-1221”, its content was written by 2 registered users of Portuguese Wikipedia and edited by 44 registered Wikipedia users in all languages.

The article is cited 36 times in Portuguese Wikipedia and cited 2260 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Portuguese): #45729 in June 2024
  • Global: #386885 in July 2015

The highest popularity rank from 2008:

  • Local (Portuguese): #624162 in June 2024
  • Global: #2201699 in April 2015

There are 9 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
1Hungarian (hu)
U–1221
26.9034
2English (en)
German submarine U-1221
15.2395
3Arabic (ar)
الغواصة الألمانية يو-1221
14.4203
4Ukrainian (uk)
U-1221
13.4396
5Portuguese (pt)
U-1221
12.8894
6Slovenian (sl)
U-1221
6.8217
7French (fr)
Unterseeboot 1221
6.1518
8Russian (ru)
U-1221
5.6627
9Persian (fa)
او-۱۲۲۱
1.2147
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 "U-1221" in all the time
#LanguagePopularity awardRelative popularity
1Russian (ru)
U-1221
23 876
2English (en)
German submarine U-1221
11 218
3French (fr)
Unterseeboot 1221
3 864
4Slovenian (sl)
U-1221
660
5Persian (fa)
او-۱۲۲۱
398
6Hungarian (hu)
U–1221
296
7Arabic (ar)
الغواصة الألمانية يو-1221
238
8Ukrainian (uk)
U-1221
83
9Portuguese (pt)
U-1221
65
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 "U-1221" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
German submarine U-1221
77
2Russian (ru)
U-1221
67
3Persian (fa)
او-۱۲۲۱
20
4Hungarian (hu)
U–1221
7
5French (fr)
Unterseeboot 1221
6
6Portuguese (pt)
U-1221
6
7Slovenian (sl)
U-1221
4
8Arabic (ar)
الغواصة الألمانية يو-1221
3
9Ukrainian (uk)
U-1221
3
More...

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

The highest AI

Language versions of the article "U-1221" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
German submarine U-1221
13
2French (fr)
Unterseeboot 1221
13
3Persian (fa)
او-۱۲۲۱
4
4Russian (ru)
U-1221
4
5Hungarian (hu)
U–1221
3
6Portuguese (pt)
U-1221
2
7Slovenian (sl)
U-1221
2
8Ukrainian (uk)
U-1221
2
9Arabic (ar)
الغواصة الألمانية يو-1221
1
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 "U-1221" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Arabic (ar)
الغواصة الألمانية يو-1221
0
2English (en)
German submarine U-1221
0
3Persian (fa)
او-۱۲۲۱
0
4French (fr)
Unterseeboot 1221
0
5Hungarian (hu)
U–1221
0
6Portuguese (pt)
U-1221
0
7Russian (ru)
U-1221
0
8Slovenian (sl)
U-1221
0
9Ukrainian (uk)
U-1221
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 "U-1221" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Arabic (ar)
الغواصة الألمانية يو-1221
1 149
2English (en)
German submarine U-1221
255
3Russian (ru)
U-1221
200
4Ukrainian (uk)
U-1221
199
5French (fr)
Unterseeboot 1221
180
6Slovenian (sl)
U-1221
105
7Hungarian (hu)
U–1221
88
8Persian (fa)
او-۱۲۲۱
48
9Portuguese (pt)
U-1221
36
More...

Scores

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

Quality measures

Interwikis

#LanguageValue
arArabic
الغواصة الألمانية يو-1221
enEnglish
German submarine U-1221
faPersian
او-۱۲۲۱
frFrench
Unterseeboot 1221
huHungarian
U–1221
ptPortuguese
U-1221
ruRussian
U-1221
slSlovenian
U-1221
ukUkrainian
U-1221

Popularity rank trends

Best Rank Portuguese:
#624162
06.2024
Global:
#2201699
04.2015

AI rank trends

Best Rank Portuguese:
#45729
06.2024
Global:
#386885
07.2015

Languages comparison

Important global interconnections (July 2024 – June 2025)

Cumulative results of quality and popularity of the Wikipedia article

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

ru: U-1221
sl: U-1221
uk: U-1221
pt: U-1221

News from 10 February 2026

On 10 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Jeffrey Epstein, Ghislaine Maxwell, Ilia Malinin, Bad Bunny, 2026 Winter Olympics, Epstein files, Jutta Leerdam, Jake Paul, Puerto Rico, Little Saint James.

In Portuguese Wikipedia the most popular articles on that day were: Jeffrey Epstein, Bad Bunny, Arquivos de Epstein, Ghislaine Maxwell, Ilia Malinin, Porto Rico, Maria Lúcia Amaral, Marco Buzzi, António José Seguro, Allan (futebolista).

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