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Case file

David Werdyger

Wikipedia's first sentence called it “popular hazzan”. Today it says “polish-american hasidic hazzan and solo singer”. The one-line description Wikipedia serves to search engines and AI systems read “Polish-American Hasidic Jewish hazzan and solo singer Musical artist”. It now reads “Polish-American Jewish cantor Musical artist”.
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 2020 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 2020

David Werdyger (Hebrew: אלתר דוד יצחק ורדיגר) (30 October 1919 – 2 April 2014) was a Polish-American Hasidic Jewish hazzan and solo singer who was considered one of the pioneers of 20th-century Jewish music.1 A Holocaust survivor who was incarcerated in several Nazi concentration camps , including the factory run by Oskar Schindler , Werdyger moved to Brooklyn , New York , after World War II and began recording albums featuring the music of the Bobov , Boyan , Skulen , Melitz , Radomsk , and Ger Hasidic dynasties, recording 60 albums in all. He also founded and operated a successful travel agency , Werdyger Travel, and established the Jewish record label, Aderet Records, now managed by his son Mendy . He was the father of popular Jewish singer Mordechai Ben David and the grandfather of Jewish singers Yeedle (Mordechai's son) and Yisroel Werdyger (Mendy's son). Werdyger collaborated with well known musical arrangers and directors including, Velvel Pasternak, Vladimir Heifetz, Yaakov Goldstein, Yisroel Lamm, Herschel Lebovits, Moshe Laufer, and others for his recordings.2

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 962362136.
Today
Wikipedia's first sentence called it “popular hazzan”. Today it says “polish-american hasidic hazzan and solo singer”. The one-line description Wikipedia serves to search engines and AI systems read “Polish-American Hasidic Jewish hazzan and solo singer Musical artist”. It now reads “Polish-American Jewish cantor Musical artist”. 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

popular hazzan

Now

polish-american hasidic hazzan and solo singer

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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