October 21

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October 21

Quality:

October 21 - day of the year. Article “October 21” in Simple English Wikipedia has 40 points for quality (as of July 1, 2025). The article contains 0 references and 14 sections.

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

Achievements in all the time:
Simple English Wikipedia:
The 9296th most popular in Simple English Wikipedia.
The 7292nd most editable in Simple English Wikipedia.
Global Wikipedia:
The 2690th most popular in AI.

Since the creation of article “October 21”, its content was written by 28 registered users of Simple English Wikipedia (7292nd place) and edited by 4614 registered Wikipedia users in all languages (2690th place).

The article is cited 100 times in Simple English Wikipedia and cited 87476 times in all languages (1758th place).

The highest Authors Interest rank from 2001:

  • Local (Simple English): #155 in July 2004
  • Global: #75 in October 2015

The highest popularity rank from 2008:

  • Local (Simple English): #723 in May 2022
  • Global: #2467 in October 2010

There are 55 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)
October 21
65.0569
2German (de)
21. Oktober
57.3664
3Dutch (nl)
21 oktober
51.1105
4Catalan (ca)
21 d'octubre
43.5107
5Portuguese (pt)
21 de outubro
42.3699
6Simple English (simple)
October 21
40
7Czech (cs)
21. říjen
36.9988
8Lithuanian (lt)
Spalio 21
36.8783
9Russian (ru)
21 октября
34.6184
10Polish (pl)
21 października
34.2425
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 "October 21" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
October 21
2 168 778
2Japanese (ja)
10月21日
1 097 276
3Spanish (es)
21 de octubre
833 212
4German (de)
21. Oktober
657 311
5Russian (ru)
21 октября
649 351
6Polish (pl)
21 października
498 550
7Portuguese (pt)
21 de outubro
348 971
8French (fr)
21 octobre
342 559
9Italian (it)
21 ottobre
260 050
10Dutch (nl)
21 oktober
251 892
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 "October 21" in June 2025
#LanguagePopularity awardRelative popularity
1Japanese (ja)
10月21日
2 090
2Russian (ru)
21 октября
1 930
3English (en)
October 21
1 725
4Portuguese (pt)
21 de outubro
799
5Arabic (ar)
21 أكتوبر
598
6Chinese (zh)
10月21日
578
7Spanish (es)
21 de octubre
525
8Polish (pl)
21 października
485
9Turkish (tr)
21 Ekim
478
10German (de)
21. Oktober
451
More...

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

The highest AI

Language versions of the article "October 21" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
October 21
844
2German (de)
21. Oktober
373
3Spanish (es)
21 de octubre
296
4French (fr)
21 octobre
257
5Dutch (nl)
21 oktober
206
6Japanese (ja)
10月21日
199
7Russian (ru)
21 октября
189
8Polish (pl)
21 października
172
9Italian (it)
21 ottobre
165
10Portuguese (pt)
21 de outubro
145
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 "October 21" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Spanish (es)
21 de octubre
4
2Dutch (nl)
21 oktober
2
3Bulgarian (bg)
21 октомври
1
4German (de)
21. Oktober
1
5Basque (eu)
Urriaren 21
1
6Indonesian (id)
21 Oktober
1
7Japanese (ja)
10月21日
1
8Korean (ko)
10월 21일
1
9Arabic (ar)
21 أكتوبر
0
10Azerbaijani (az)
21 oktyabr
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 "October 21" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Japanese (ja)
10月21日
10 258
2French (fr)
21 octobre
6 819
3Hebrew (he)
21 באוקטובר
5 287
4Russian (ru)
21 октября
5 145
5Serbian (sr)
21. октобар
4 975
6German (de)
21. Oktober
3 570
7Ukrainian (uk)
21 жовтня
3 543
8Polish (pl)
21 października
2 979
9Portuguese (pt)
21 de outubro
2 785
10Kazakh (kk)
21 қазан
2 608
More...

Scores

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

Quality measures

Interwikis

#LanguageValue
arArabic
21 أكتوبر
azAzerbaijani
21 oktyabr
beBelarusian
21 кастрычніка
bgBulgarian
21 октомври
caCatalan
21 d'octubre
csCzech
21. říjen
daDanish
21. oktober
deGerman
21. Oktober
elGreek
21 Οκτωβρίου
enEnglish
October 21
eoEsperanto
21-a de oktobro
esSpanish
21 de octubre
etEstonian
21. oktoober
euBasque
Urriaren 21
faPersian
۲۱ اکتبر
fiFinnish
21. lokakuuta
frFrench
21 octobre
glGalician
21 de outubro
heHebrew
21 באוקטובר
hiHindi
२१ अक्टूबर
hrCroatian
21. listopada
huHungarian
Október 21.
hyArmenian
Հոկտեմբերի 21
idIndonesian
21 Oktober
itItalian
21 ottobre
jaJapanese
10月21日
kaGeorgian
21 ოქტომბერი
kkKazakh
21 қазан
koKorean
10월 21일
laLatin
21 Octobris
ltLithuanian
Spalio 21
msMalay
21 Oktober
nlDutch
21 oktober
nnNorwegian (Nynorsk)
21. oktober
noNorwegian
21. oktober
plPolish
21 października
ptPortuguese
21 de outubro
roRomanian
21 octombrie
ruRussian
21 октября
shSerbo-Croatian
21. 10.
simpleSimple English
October 21
skSlovak
21. október
slSlovenian
21. oktober
srSerbian
21. октобар
svSwedish
21 oktober
taTamil
அக்டோபர் 21
thThai
21 ตุลาคม
trTurkish
21 Ekim
ukUkrainian
21 жовтня
urUrdu
21 اکتوبر
uzUzbek
21-oktyabr
viVietnamese
21 tháng 10
voVolapük
Tobul 21
zhChinese
10月21日
zhminnanMin Nan
10 goe̍h 21 ji̍t

Popularity rank trends

Best Rank Simple English:
#723
05.2022
Global:
#2467
10.2010

AI rank trends

Best Rank Simple English:
#155
07.2004
Global:
#75
10.2015

Local popularity rank history

Global popularity rank history

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on October 21 from Wikipedia articles about October 20, October 22, October, &TEAM and Benjamin Netanyahu. Whereas reading the article about October 21 people most often go to Wikipedia articles on October 22, October 20, Battle of Trafalgar, Nemmersdorf massacre and Aberfan disaster.

Cumulative results of quality and popularity of the Wikipedia article

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

simple: October 21

News from 16 March 2026

On 16 March 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 98th Academy Awards, Michael B. Jordan, Sinners, Jessie Buckley, Paul Thomas Anderson, Sean Penn, One Battle After Another, Amy Madigan, Hamnet, Timothée Chalamet.

In Simple English Wikipedia the most popular articles on that day were: Black, Alba Baptista, List of European countries, XXXTentacion, Golden Edge, SOLID (object-oriented design), Strait of Hormuz, Megan Skiendiel, Manon Bannerman, Chris Evans.

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