Aktion T4

Quality:

Aktion T4 - Nazi Germany's programme of euthanasia which claimed 275,000–300,000 victims. Article “Aktion T4” in Basque Wikipedia has 30.5 points for quality (as of July 1, 2026). The article contains 8 references and 8 sections.

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

Achievements in all the time:

Global Wikipedia:

The 8911^th most popular in AI.

In June 2026 the article “Aktion T4” was edited by 1 authors in Basque Wikipedia and written by 17 authors in all languages.

Since the creation of article “Aktion T4”, its content was written by 2 registered users of Basque Wikipedia and edited by 2719 registered Wikipedia users in all languages (8911^th place).

The article is cited 7 times in Basque Wikipedia and cited 8157 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Basque): #572 in August 2025
• Global: #3915 in August 2005

The highest popularity rank from 2008:

• Local (Basque): #4658 in August 2025
• Global: #7649 in April 2025

There are 42 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, 2026 (including revision history and pageviews for previous years).

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

#	Language	Quality grade	Quality score
1	French (fr) Aktion T4		100
2	Romanian (ro) Aktion T4		100
3	Russian (ru) Программа Т-4		98.5334
4	English (en) Aktion T4		97.1222
5	Norwegian (no) Aktion T4		96.4706
6	Serbo-Croatian (sh) Akcija T4		94.1176
7	Spanish (es) Aktion T4		89.7729
8	Japanese (ja) T4作戦		85.8989
9	German (de) Aktion T4		84.6189
10	Armenian (hy) T4 գործողություն		75.5992

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

#	Language	Popularity award	Relative popularity
1	English (en) Aktion T4		6 911 557
2	German (de) Aktion T4		3 819 285
3	Russian (ru) Программа Т-4		2 153 553
4	Japanese (ja) T4作戦		1 384 959
5	Polish (pl) Akcja T4		1 042 647
6	Italian (it) Aktion T4		1 022 947
7	French (fr) Aktion T4		999 061
8	Spanish (es) Aktion T4		535 070
9	Chinese (zh) T-4行动		232 812
10	Dutch (nl) Aktion T4		230 440

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

#	Language	Popularity award	Relative popularity
1	English (en) Aktion T4		29 987
2	German (de) Aktion T4		11 361
3	Russian (ru) Программа Т-4		5 847
4	Japanese (ja) T4作戦		4 656
5	French (fr) Aktion T4		4 338
6	Polish (pl) Akcja T4		3 916
7	Italian (it) Aktion T4		2 939
8	Spanish (es) Aktion T4		1 753
9	Dutch (nl) Aktion T4		955
10	Chinese (zh) T-4行动		838

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

#	Language	AI award	Relative AI
1	English (en) Aktion T4		632
2	German (de) Aktion T4		552
3	French (fr) Aktion T4		233
4	Italian (it) Aktion T4		164
5	Russian (ru) Программа Т-4		144
6	Polish (pl) Akcja T4		130
7	Hebrew (he) תוכנית T4 - אותנסיה		121
8	Dutch (nl) Aktion T4		85
9	Japanese (ja) T4作戦		70
10	Spanish (es) Aktion T4		62

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

#	Language	AI award	Relative AI
1	Italian (it) Aktion T4		4
2	German (de) Aktion T4		3
3	Armenian (hy) T4 գործողություն		2
4	Japanese (ja) T4作戦		2
5	Bulgarian (bg) Акция Т4		1
6	English (en) Aktion T4		1
7	Basque (eu) Aktion T4		1
8	Polish (pl) Akcja T4		1
9	Romanian (ro) Aktion T4		1
10	Serbian (sr) Акција Т4		1

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

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In Basque Wikipedia the most popular articles on that day were: Jesus Mari Zabarte Arregi, Ľudovít Štúr, Denis Diderot, Giza anatomia, .us, Galtonen taula, Microcarbo melanoleucos, Novak Đoković, Atribis, Fountain Place.

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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information