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Case file

Great Synagogue of Vilna

Wikipedia's first sentence called it “built between 1630-1633 after permission was granted to construct a synagogue from stone”. Today it says “former orthodox jewish congregation and synagogue which once stood at the end of jewish street”. The one-line description Wikipedia serves to search engines and AI systems read “Former synagogue in Vilnius, Lithuania”. It now reads “Former Orthodox synagogue in Vilnius, , see”.
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 2025 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 2025

Former Orthodox synagogue in Vilnius, Lithuania For similarly named synagogues, see Great Synagogue . The Great Synagogue , officially, the Great City Synagogue in Vilna , also the Great Synagogue of Vilnius , is a former Orthodox Jewish congregation and synagogue which once stood at the end of Jewish Street (I-2) in the Old Town of Vilnius in Lithuania . Designed in the Renaissance and Baroque styles, the stone building was completed in 1633 and operated as a synagogue until it was devastated by Nazis in 1941. In 1945, the former synagogue was still standing, although roofless. In 1946 the short living Jewish Museum of Vilnius tried to list the synagogue as a historic monument and thus to preserve it, but without success. In 1947 the synagogue was blasted and its ruins were demolished by 1957 and replaced by a kindergarten and a primary school. The synagogue was located on the spot of an existing synagogue built in 1572, the site had first been used to house a Jewish house of prayer in 1440. The Bezalel Narkiss Index of Jewish Art . The Center for Jewish Art at the Hebrew University of Jerusalem . n.d .

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 1294780379.
Today
Wikipedia's first sentence called it “built between 1630-1633 after permission was granted to construct a synagogue from stone”. Today it says “former orthodox jewish congregation and synagogue which once stood at the end of jewish street”. The one-line description Wikipedia serves to search engines and AI systems read “Former synagogue in Vilnius, Lithuania”. It now reads “Former Orthodox synagogue in Vilnius, , see”. 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

built between 1630-1633 after permission was granted to construct a synagogue from stone

Now

former orthodox jewish congregation and synagogue which once stood at the end of jewish street

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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