Case file
Acanthobrama telavivensis
Wikipedia's first sentence called it “species of ray-finned fish in the cyprinidae family”. Today it says “species of freshwater ray-finned fish of the family leuciscidae found only in israel”. The one-line description Wikipedia serves to search engines and AI systems read “species of fish”. It now reads “Species of fish”.
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 2010 one. Red dashes: removed from Wikipedia since.
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The opening as it read in 2010
Acanthobrama telavivensis , the Yarkon bleak , is a species of ray-finned fish in the Cyprinidae family. It is found only in Israel . Its natural habitat is rivers . It is threatened by habitat loss . Acanthobrama telavivensis is listed as extinct in the wild by the IUCN Red List . IUCN Red List of Threatened Species . 2006 . 2006. : Unknown parameter |assessors= ignored ( help ) ; Unknown parameter |downloaded= ignored ( help ) : error: no identifier ( help ) IUCN 2010.1
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 368140557.
Today
Wikipedia's first sentence called it “species of ray-finned fish in the cyprinidae family”. Today it says “species of freshwater ray-finned fish of the family leuciscidae found only in israel”. The one-line description Wikipedia serves to search engines and AI systems read “species of fish”. It now reads “Species of fish”. Read the current article and compare.
| 2010 | 2015 | 2020 | Oct '23 | 2025 |
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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
species of ray-finned fish in the cyprinidae family
Now
species of freshwater ray-finned fish of the family leuciscidae found only in israel
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.