Case file
Felix Adler (professor)
In 2005 Wikipedia's first sentence called it “jewish rationalist intellectual who founded the society for ethical culture in new york city”. Today it says “german-american professor of political and social ethics”.
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 2026-08-02. In 2005 Wikipedia's first sentence called it “jewish rationalist intellectual who founded the society for ethical culture in new york city”. Today it says “german-american professor of political and social ethics”.
We saved snapshots of this article over twenty years; you are reading the 2020 one. Red dashes: removed from Wikipedia since.
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The opening as it read in 2020
Felix Adler (August 13, 1851 – April 24, 1933) was a German American professor of political and social ethics, rationalist , influential lecturer on euthanasia , religious leader and social reformer who founded the Ethical Culture movement . Jewish Women: A Comprehensive Historical Encyclopedia . Dictionary of American Religious Biography (2nd ed.). A merciful end: the euthanasia movement in modern America . University of Chicago Press . : CS1 maint: ref duplicates default ( link )1
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 955448488.
Today
In 2005 Wikipedia's first sentence called it “jewish rationalist intellectual who founded the society for ethical culture in new york city”. Today it says “german-american professor of political and social ethics”. Read the current article and compare.
| 2005 | 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 between 2005 and 2025.
Then
jewish rationalist intellectual who founded the society for ethical culture in new york city
Now
german-american professor of political and social ethics
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.