Case file
Stef Wertheimer
Wikipedia's first sentence called it “considered the wealthiest israeli living in israel”. Today it says “israeli billionaire industrialist”. The one-line description Wikipedia serves to search engines and AI systems read “Israeli politician Ze'ev”. It now reads “Israeli industrialist and politician (1926–2025)”.
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.
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The opening as it read in 2015
Stefan "Stef" Wertheimer ( , born 16 July 1926) is a German-born Israeli business magnate, philanthropist and former politician.1 He is a former Member of the Knesset , and is well known for founding industrial parks in Israel and neighboring countries The Wertheimers are Israel’s richest family as of 2013.2
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 667351307.
Today
Wikipedia's first sentence called it “considered the wealthiest israeli living in israel”. Today it says “israeli billionaire industrialist”. The one-line description Wikipedia serves to search engines and AI systems read “Israeli politician Ze'ev”. It now reads “Israeli industrialist and politician (1926–2025)”. 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
considered the wealthiest israeli living in israel
Now
israeli billionaire industrialist
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.