640 a.C.

640 BC - year. Article “640 a.C.” in Portuguese Wikipedia has 25.7 points for quality (as of July 1, 2025). The article contains 9 references and 3 sections.

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

Since the creation of article “640 a.C.”, its content was written by 8 registered users of Portuguese Wikipedia and edited by 224 registered Wikipedia users in all languages.

The article is cited 25 times in Portuguese Wikipedia and cited 1255 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Portuguese): #14452 in April 2024
• Global: #19007 in October 2003

The highest popularity rank from 2008:

• Local (Portuguese): #26892 in February 2015
• Global: #465346 in February 2015

There are 30 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	Bulgarian (bg) 640 г. пр.н.е.		29.0585
2	Russian (ru) 640 год до н. э.		27.2304
3	Vietnamese (vi) 640 TCN		26.417
4	Portuguese (pt) 640 a.C.		25.6553
5	Chinese (zh) 前640年		24.3238
6	Arabic (ar) 640 ق م		23.5411
7	Hungarian (hu) I. e. 640		21.0201
8	English (en) 640 BC		19.4368
9	Dutch (nl) 640 v.Chr.		7.7697
10	Esperanto (eo) -640		5.8958

More...

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

The most popular language versions of the article "640 a.C." in all the time

#	Language	Popularity award	Relative popularity
1	Polish (pl) 640 p.n.e.		40 344
2	English (en) 640 BC		26 553
3	Russian (ru) 640 год до н. э.		17 526
4	Italian (it) 640 a.C.		15 389
5	Portuguese (pt) 640 a.C.		8 423
6	German (de) 640 v. Chr.		6 542
7	Dutch (nl) 640 v.Chr.		5 897
8	Chinese (zh) 前640年		5 761
9	Japanese (ja) 紀元前640年		4 530
10	Hungarian (hu) I. e. 640		3 772

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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 "640 a.C." in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) 640 BC		90
2	Russian (ru) 640 год до н. э.		38
3	Chinese (zh) 前640年		38
4	Polish (pl) 640 p.n.e.		31
5	Italian (it) 640 a.C.		30
6	German (de) 640 v. Chr.		20
7	Japanese (ja) 紀元前640年		15
8	Hungarian (hu) I. e. 640		13
9	Arabic (ar) 640 ق م		12
10	Portuguese (pt) 640 a.C.		12

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

Language versions of the article "640 a.C." with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	Italian (it) 640 a.C.		29
2	Dutch (nl) 640 v.Chr.		28
3	Russian (ru) 640 год до н. э.		23
4	Hungarian (hu) I. e. 640		17
5	Latin (la) 640 a.C.n.		15
6	Galician (gl) -640		13
7	English (en) 640 BC		12
8	Croatian (hr) 640. pr. Kr.		11
9	Chinese (zh) 前640年		9
10	Portuguese (pt) 640 a.C.		8

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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 "640 a.C." with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Japanese (ja) 紀元前640年		2
2	Arabic (ar) 640 ق م		0
3	Azerbaijani (az) E.ə. 640		0
4	Bulgarian (bg) 640 г. пр.н.е.		0
5	German (de) 640 v. Chr.		0
6	English (en) 640 BC		0
7	Esperanto (eo) -640		0
8	Estonian (et) 640 eKr		0
9	Persian (fa) ۶۴۰ (پیش از میلاد)		0
10	Galician (gl) -640		0

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

Language versions of the article "640 a.C." with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Russian (ru) 640 год до н. э.		322
2	Japanese (ja) 紀元前640年		124
3	Bulgarian (bg) 640 г. пр.н.е.		107
4	Persian (fa) ۶۴۰ (پیش از میلاد)		95
5	Polish (pl) 640 p.n.e.		70
6	Italian (it) 640 a.C.		59
7	Ukrainian (uk) 640 до н. е.		34
8	Uzbek (uz) Mil. av. 640		30
9	Hungarian (hu) I. e. 640		29
10	Serbo-Croatian (sh) 640. pr. n. e.		28

More...

#	Language	Value
ar	Arabic 640 ق م
az	Azerbaijani E.ə. 640
bg	Bulgarian 640 г. пр.н.е.
de	German 640 v. Chr.
en	English 640 BC
eo	Esperanto -640
et	Estonian 640 eKr
fa	Persian ۶۴۰ (پیش از میلاد)
gl	Galician -640
hr	Croatian 640. pr. Kr.
hu	Hungarian I. e. 640
hy	Armenian Մ.թ.ա. 640
it	Italian 640 a.C.
ja	Japanese 紀元前640年
ka	Georgian ძვ. წ. 640
kk	Kazakh Б. з. д. 640 жыл
la	Latin 640 a.C.n.
nl	Dutch 640 v.Chr.
no	Norwegian 640 f.Kr.
pl	Polish 640 p.n.e.
pt	Portuguese 640 a.C.
ru	Russian 640 год до н. э.
sh	Serbo-Croatian 640. pr. n. e.
sk	Slovak 640 pred Kr.
sl	Slovenian 640 pr. n. št.
sr	Serbian 640. п. н. е.
uk	Ukrainian 640 до н. е.
uz	Uzbek Mil. av. 640
vi	Vietnamese 640 TCN
zh	Chinese 前640年

Best Rank

Portuguese: #26892 02.2015

Global: #465346 02.2015

Best Rank

Portuguese: #14452 04.2024

Global: #19007 10.2003

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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