Birthday-number effect

Birthday-number effect - subconscious tendency of people to prefer the numbers in the date of their birthday. Article “Birthday-number effect” in English Wikipedia has 78 points for quality (as of July 1, 2025). The article contains 108 references and 14 sections.

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

In June 2025 the article “Birthday-number effect” was edited by 2 authors in English Wikipedia and written by 5 authors in all languages.

Since the creation of article “Birthday-number effect”, its content was written by 55 registered users of English Wikipedia and edited by 132 registered Wikipedia users in all languages.

The article is cited 7 times in English Wikipedia and cited 268 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #717 in December 2017
• Global: #5311 in December 2017

The highest popularity rank from 2008:

• Local (English): #17367 in December 2017
• Global: #39788 in December 2017

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	Chinese (zh) 生日数字效应		80
2	English (en) Birthday-number effect		78.0153
3	Arabic (ar) تأثير أرقام يوم الميلاد		55.5847
4	French (fr) Préférence pour les nombres de sa date de naissance		53.9982
5	Serbian (sr) Ефекат рођенданског броја		50.4217
6	Russian (ru) Эффект даты рождения		43.3308
7	Persian (fa) اثر شماره تولد		25.2124
8	Spanish (es) Efecto numérico de la fecha de cumpleaños		22.0504
9	Indonesian (id) Efek angka-ulang tahun		7.7308

More...

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

The most popular language versions of the article "Birthday-number effect" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Birthday-number effect		176 881
2	Arabic (ar) تأثير أرقام يوم الميلاد		45 362
3	Spanish (es) Efecto numérico de la fecha de cumpleaños		15 323
4	Chinese (zh) 生日数字效应		14 912
5	Russian (ru) Эффект даты рождения		10 612
6	French (fr) Préférence pour les nombres de sa date de naissance		1 484
7	Persian (fa) اثر شماره تولد		837
8	Serbian (sr) Ефекат рођенданског броја		445
9	Indonesian (id) Efek angka-ulang tahun		336

More...

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 "Birthday-number effect" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Birthday-number effect		1 341
2	Arabic (ar) تأثير أرقام يوم الميلاد		398
3	Chinese (zh) 生日数字效应		279
4	Russian (ru) Эффект даты рождения		119
5	Spanish (es) Efecto numérico de la fecha de cumpleaños		76
6	French (fr) Préférence pour les nombres de sa date de naissance		21
7	Serbian (sr) Ефекат рођенданског броја		19
8	Persian (fa) اثر شماره تولد		18
9	Indonesian (id) Efek angka-ulang tahun		11

More...

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

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

#	Language	AI award	Relative AI
1	English (en) Birthday-number effect		55
2	Chinese (zh) 生日数字效应		22
3	Arabic (ar) تأثير أرقام يوم الميلاد		18
4	French (fr) Préférence pour les nombres de sa date de naissance		13
5	Russian (ru) Эффект даты рождения		8
6	Spanish (es) Efecto numérico de la fecha de cumpleaños		7
7	Persian (fa) اثر شماره تولد		3
8	Indonesian (id) Efek angka-ulang tahun		3
9	Serbian (sr) Ефекат рођенданског броја		3

More...

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

Language versions of the article "Birthday-number effect" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Chinese (zh) 生日数字效应		3
2	English (en) Birthday-number effect		2
3	Arabic (ar) تأثير أرقام يوم الميلاد		0
4	Spanish (es) Efecto numérico de la fecha de cumpleaños		0
5	Persian (fa) اثر شماره تولد		0
6	French (fr) Préférence pour les nombres de sa date de naissance		0
7	Indonesian (id) Efek angka-ulang tahun		0
8	Russian (ru) Эффект даты рождения		0
9	Serbian (sr) Ефекат рођенданског броја		0

More...

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

Language versions of the article "Birthday-number effect" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Chinese (zh) 生日数字效应		227
2	Arabic (ar) تأثير أرقام يوم الميلاد		32
3	English (en) Birthday-number effect		7
4	Spanish (es) Efecto numérico de la fecha de cumpleaños		2
5	Persian (fa) اثر شماره تولد		0
6	French (fr) Préférence pour les nombres de sa date de naissance		0
7	Indonesian (id) Efek angka-ulang tahun		0
8	Russian (ru) Эффект даты рождения		0
9	Serbian (sr) Ефекат рођенданског броја		0

More...

#	Language	Value
ar	Arabic تأثير أرقام يوم الميلاد
en	English Birthday-number effect
es	Spanish Efecto numérico de la fecha de cumpleaños
fa	Persian اثر شماره تولد
fr	French Préférence pour les nombres de sa date de naissance
id	Indonesian Efek angka-ulang tahun
ru	Russian Эффект даты рождения
sr	Serbian Ефекат рођенданског броја
zh	Chinese 生日数字效应

Best Rank

English: #17367 12.2017

Global: #39788 12.2017

Best Rank

English: #717 12.2017

Global: #5311 12.2017

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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