Case file
Franz Sondheimer
Wikipedia's first sentence called it “british chemist”. Today it says “german-born british professor of chemistry”.
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.
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The opening as it read in 2025
Franz Sondheimer FRS (17 May 1926 – 11 February 1981) was a German-born British professor of chemistry. In 1960, he was awarded the Israel Prize for his contributions to science. S2CID 72095881 . : CS1 maint: unflagged free DOI ( link ) Arrival record, flight from Tel Aviv to New York, 19 November 1958
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 1292220579.
Today
Wikipedia's first sentence called it “british chemist”. Today it says “german-born british professor of chemistry”. 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
british chemist
Now
german-born british professor of chemistry
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.