Case file
Chaim Zimmerman
Wikipedia's first sentence called it “one of the leading rabbis of the post-war generation”. Today it says “ukrainian-born american orthodox rabbi”.
Found by software in Wikipedia's own edit history. Not yet read by hand. The quoted words are Wikipedia's.
Compared with the live article on 2026-08-04.
We saved snapshots of this article over twenty years; you are reading the 2010 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 2010
Chaim Zimmerman (1915-1995) was one of the leading rabbis of the Post-War generation. He was the son of Rabbi Yaakov Moshe Zimmerman and nephew of Rabbi Baruch Ber Lebowitz .1
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 369163370.
Today
Wikipedia's first sentence called it “one of the leading rabbis of the post-war generation”. Today it says “ukrainian-born american orthodox rabbi”. 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
one of the leading rabbis of the post-war generation
Now
ukrainian-born american orthodox rabbi
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.