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Case file

Moscow Cathedral Mosque

Wikipedia's first sentence called it “often viewed as the central mosque in russia”. Today it says “main mosque of moscow”. The one-line description Wikipedia serves to search engines and AI systems read “The historic Cathedral Mosque surrounded by the construction site of the new mosque (2009) Central hall with a dome”. It now reads “Mosque in Moscow, Russia The historic Cathedral Mosque surrounded by the construction site of the new mosque (2009) Central hall with a dome”.
Measured, not asserted. Every count, date and revision on this page was taken from Wikipedia's own history and checked against the live article. The words quoted are theirs.
Machine-checked against the full current article on 2026-08-03.
We saved snapshots of this article over twenty years; you are reading the 2015 one. Red dashes: removed from Wikipedia since. Pale dots: rewritten; the numbered note shows what it says now. 1 tap a number or a side note to jump between them
The opening as it read in 2015

Moscow Cathedral Mosque (Russian: Московская соборная мечеть , Moskovskaya sobornaya mechet ) was a historical mosque in Moscow , Russia .1 It was built in 1904 and demolished in 2011. At the time it was demolished, it was one of the four mosques in Moscow.2 It was located on Olimpiysky Avenue , close to the Olympic indoor stadium in the center of Moscow.3 Socially, the Moscow Congregational Mosque was often viewed as the central mosque in Russia. It was built in 1904 according to the design of the architect Nikolay Zhukov and has undergone some reconstructions since then. It was also sometimes called Tatar Mosque because its congregation consisted mainly of ethnic Tatars . The mosque was demolished on September 11, 2011. The decision to demolish it was controversial. In June 2008, the mosque was recognized as an object of cultural heritage, however, in the end of 2008 it was removed from the list of historical and architectural monuments. Thus, at the time of demolition, it was not protected. There were plans to reconstruct the mosque, and the reconstruction project was designed by architect Ilyas Tazhiyev . One of the reasons for reconstruction was that the building deviated by several degrees from the direction to Mecca . The project included disassembling the mosque, collecting all the stones, and re-assembling it again with corrected orientation. In 2009, however, the Council of Muftis dismissed Tazhiyev, first claiming they will make another reconstruction project, and then demolishing the building claiming it was close to collapse. Tazhiyev stated after the demolition that the reconstruction was still possible, and the building was not close to collapse. The Moscow Cathedral Mosque became the first demolished religious building in Moscow since 1978. Moscow Times Historic Mosque Demolished on 9/11 Anniversary Зачем снесли Соборную мечеть? (in Russian). Радиостанция «Эхо Москвы». 17 September 2011 .4

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 634323793.
Today
Wikipedia's first sentence called it “often viewed as the central mosque in russia”. Today it says “main mosque of moscow”. The one-line description Wikipedia serves to search engines and AI systems read “The historic Cathedral Mosque surrounded by the construction site of the new mosque (2009) Central hall with a dome”. It now reads “Mosque in Moscow, Russia The historic Cathedral Mosque surrounded by the construction site of the new mosque (2009) Central hall with a dome”. Read the current article and compare.
201020152020Oct '232025
Counts in the opening at each snapshot. Green: the word gained ground. Red: it was cut. Grey: no change.

What Wikipedia says this is

Every article opens by defining its subject. This one was redefined since 2010, and today's defining sentence is their current revision.

Then

often viewed as the central mosque in russia

Now

main mosque of moscow

Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.

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