Case file
David Wallechinsky
Wikipedia's first sentence called it “olympic historian”. Today it says “american popular historian and television commentator”.
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 2005 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 2005
David Wallechinsky is an Olympic historian, who worked as commentator for NBC Olympic coverage and is the author of many Olympic reference books and other reference books. His is the author of The Complete Book of the Summer Olympics series. He is also known for his work on The People's Almanac and The Book of Lists series. He splits his time between Santa Monica and the South of France.1
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 17460144.
Today
Wikipedia's first sentence called it “olympic historian”. Today it says “american popular historian and television commentator”. 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 since 2005, and today's defining sentence is their current revision.
Then
olympic historian
Now
american popular historian and television commentator
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.