Case file
Avraham Abba Leifer
Wikipedia's first sentence called it “second rebbe of the pittsburg”. Today it says “second rebbe of the pittsburgh hasidic dynasty and the instigator for the relocation of the hasidut from its or”.
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Machine-checked against the full current article on 2026-08-03.
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The opening as it read in October 6, 2023
Avraham Abba Leifer (1918 – 7 January 1990) was the second Rebbe of the Pittsburgh Hasidic dynasty and the instigator for the relocation of the Hasidut from its original location in Pittsburgh, Pennsylvania to the Israeli coastal city of Ashdod . He was widely known for his yiras Shamayim (fear of Heaven), humility and friendliness toward Jews of all backgrounds.1
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 1144673128.
Today
Wikipedia's first sentence called it “second rebbe of the pittsburg”. Today it says “second rebbe of the pittsburgh hasidic dynasty and the instigator for the relocation of the hasidut from its or”. 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
second rebbe of the pittsburg
Now
second rebbe of the pittsburgh hasidic dynasty and the instigator for the relocation of the hasidut from its or
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.