Project 639

Test No. 6 - sixth Chinese nuclear test, 1967. Article “Project 639” in English Wikipedia has 44.8 points for quality (as of July 1, 2025). The article contains 16 references and 11 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.

In June 2025 the article “Project 639” was edited by 6 authors in English Wikipedia and written by 6 authors in all languages.

Since the creation of article “Project 639”, its content was written by 49 registered users of English Wikipedia and edited by 84 registered Wikipedia users in all languages.

The article is cited 38 times in English Wikipedia and cited 245 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #28206 in June 2025
• Global: #112400 in June 2025

The highest popularity rank from 2008:

• Local (English): #245318 in January 2016
• Global: #368466 in July 2023

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.

#	Language	Quality grade	Quality score
1	English (en) Project 639		44.824
2	Finnish (fi) Kiinan ydinkoe nro 6		26.3345
3	French (fr) Test no 6		18.4459
4	Ukrainian (uk) Ядерне випробування №6		16.7476
5	Spanish (es) N.º 6 (prueba nuclear)		14.6494
6	Russian (ru) Ядерное испытание № 6		14.2248
7	Portuguese (pt) Teste nº 6		10.559
8	Indonesian (id) Uji coba No. 6		7.3069
9	Romanian (ro) Nr. 6		1.0443

More...

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

The most popular language versions of the article "Project 639" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Project 639		302 620
2	Russian (ru) Ядерное испытание № 6		32 360
3	Portuguese (pt) Teste nº 6		8 080
4	French (fr) Test no 6		7 258
5	Spanish (es) N.º 6 (prueba nuclear)		4 409
6	Romanian (ro) Nr. 6		2 499
7	Indonesian (id) Uji coba No. 6		597
8	Ukrainian (uk) Ядерне випробування №6		279
9	Finnish (fi) Kiinan ydinkoe nro 6		134

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

The most popular language versions of the article "Project 639" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Project 639		3 430
2	Russian (ru) Ядерное испытание № 6		285
3	French (fr) Test no 6		243
4	Spanish (es) N.º 6 (prueba nuclear)		210
5	Portuguese (pt) Teste nº 6		39
6	Finnish (fi) Kiinan ydinkoe nro 6		18
7	Indonesian (id) Uji coba No. 6		13
8	Ukrainian (uk) Ядерне випробування №6		12
9	Romanian (ro) Nr. 6		7

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

Language versions of the article "Project 639" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Project 639		49
2	Russian (ru) Ядерное испытание № 6		12
3	Spanish (es) N.º 6 (prueba nuclear)		7
4	Portuguese (pt) Teste nº 6		7
5	French (fr) Test no 6		3
6	Ukrainian (uk) Ядерне випробування №6		3
7	Finnish (fi) Kiinan ydinkoe nro 6		1
8	Indonesian (id) Uji coba No. 6		1
9	Romanian (ro) Nr. 6		1

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

Language versions of the article "Project 639" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) Project 639		6
2	Spanish (es) N.º 6 (prueba nuclear)		0
3	Finnish (fi) Kiinan ydinkoe nro 6		0
4	French (fr) Test no 6		0
5	Indonesian (id) Uji coba No. 6		0
6	Portuguese (pt) Teste nº 6		0
7	Romanian (ro) Nr. 6		0
8	Russian (ru) Ядерное испытание № 6		0
9	Ukrainian (uk) Ядерне випробування №6		0

More...

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

Language versions of the article "Project 639" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Portuguese (pt) Teste nº 6		175
2	English (en) Project 639		38
3	French (fr) Test no 6		10
4	Russian (ru) Ядерное испытание № 6		7
5	Spanish (es) N.º 6 (prueba nuclear)		6
6	Finnish (fi) Kiinan ydinkoe nro 6		3
7	Ukrainian (uk) Ядерне випробування №6		3
8	Romanian (ro) Nr. 6		2
9	Indonesian (id) Uji coba No. 6		1

More...

#	Language	Value
en	English Project 639
es	Spanish N.º 6 (prueba nuclear)
fi	Finnish Kiinan ydinkoe nro 6
fr	French Test no 6
id	Indonesian Uji coba No. 6
pt	Portuguese Teste nº 6
ro	Romanian Nr. 6
ru	Russian Ядерное испытание № 6
uk	Ukrainian Ядерне випробування №6

Best Rank

English: #245318 01.2016

Global: #368466 07.2023

Best Rank

English: #28206 06.2025

Global: #112400 06.2025

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In English Wikipedia the most popular articles on that day were: Ajit Pawar, Border 2, Sharad Pawar, Killing of Alex Pretti, Ilhan Omar, Sunetra Pawar, Todd Monken, Kristi Noem, Wonder Man (miniseries), Gregory Bovino.

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