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Case file

Walter Isaacson

Wikipedia's first sentence called it “american writer and biographer”. Today it says “american journalist who has written biographies of henry kissinger”. The one-line description Wikipedia serves to search engines and AI systems read “American author, journalist and professor”. It now reads “American author and journalist (born 1952)”.
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 2025 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 2025

Walter Seff Isaacson (born May 20, 1952) is an American journalist who has written biographies of Henry Kissinger , Benjamin Franklin , Leonardo da Vinci , Albert Einstein , Steve Jobs , Jennifer Doudna and Elon Musk . As of 2024, Isaacson is a professor at Tulane University and, since 2018, an interviewer for the PBS and CNN news show Amanpour & Company . He has been the president and CEO of the Aspen Institute , a nonpartisan policy studies organization based in Washington, D.C. , the chair and CEO of CNN , and the editor of Time . Isaacson attended Harvard University and Pembroke College, Oxford as a Rhodes scholar . The Wise Men: Six Friends and the World They Made (1986) and the author of Pro and Con (1983), Kissinger: A Biography (1992), Benjamin Franklin: An American Life (2003), Einstein: His Life and Universe (2007), American Sketches (2009), Steve Jobs (2011), The Innovators: How a Group of Hackers, Geniuses, and Geeks Created the Digital Revolution (2014), Leonardo da Vinci (2017), The Code Breaker: Jennifer Doudna, Gene Editing, and the Future of the Human Race (2021) and Elon Musk (2023). Isaacson is an advisory partner at Perella Weinberg Partners , a New York City-based financial services firm. He was vice chair of the Louisiana Recovery Authority , which oversaw the rebuilding after Hurricane Katrina , chaired the government board that runs Voice of America , and was a member of the Defense Innovation Board.

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 1289379828.
Today
Wikipedia's first sentence called it “american writer and biographer”. Today it says “american journalist who has written biographies of henry kissinger”. The one-line description Wikipedia serves to search engines and AI systems read “American author, journalist and professor”. It now reads “American author and journalist (born 1952)”. 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

american writer and biographer

Now

american journalist who has written biographies of henry kissinger

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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