Wikipedia's first sentence called it “israeli professor of behavioral economics”. Today it says “american author and professor of business administration at duke university”. The one-line description Wikipedia serves to search engines and AI systems read “Israeli American professor of psychology and behavioral economics”. It now reads “Israeli-American professor of psychology and behavioral economics (born 1967)”.
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.Red text: written in or rewritten since the previous snapshot.1 tap a number or a side note to jump between them
The opening as it read in 2025
Israeli-American professor of psychology and behavioral economics (born 1967) Dan Ariely ( Hebrew : דן אריאלי ; born April 29, 1967) is an Israeli-American professor and author. He serves as a James B. Duke Professor of psychology and behavioral economics at Duke University . He is the co-founder of several companies implementing insights from behavioral science. Ariely wrote an advice column called "Ask Ariely" in The Wall Street Journal from June 2012 until September 2022. He is the author of the three New York Times best selling books Predictably Irrational , The Upside of Irrationality , and The Honest Truth about Dishonesty . He co-produced the 2015 documentary (Dis)Honesty: The Truth About Lies . In 2021, a paper with Ariely as the fourth author was discovered to be based on falsified data and was subsequently retracted. In 2024, Duke completed a three-year confidential investigation and according to Ariely concluded that "data from the honesty-pledge paper had been falsified but found no evidence that Ariely used fake data knowingly". Ariely's life, research, and book Predictably Irrational inspired the NBC television series The Irrational ; it premiered on September 25, 2023.
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 1297273616.
The opening as it stood in 2010
Dan Ariely (born 1968) is an Israeli professor of behavioral economics . He teaches at Duke University and is head of the eRationality research group at the MIT Media Lab .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 370322863.
The opening as it stood in 2015 2 passages from the previous snapshot no longer appear
Dan Ariely (born April 29, 1967) is an Israeli American professor of psychology and behavioral economics .He teaches at Duke University and is the founder of The Center for Advanced Hindsight and also the co-founder of BEworks .Ariely's talks on TED have been watched over 7.8 million times.He is the author of Predictably Irrational and The Upside of Irrationality , both of which became New York Times best sellers, as well as The Honest Truth about Dishonesty .Dan Ariely | Center for Advanced Hindsight When Dan Ariely found the key to human nature
Red text was written in or rewritten since the previous snapshot. Their copy is revision 667574343.
The opening as it stood in 2020 3 passages from the previous snapshot no longer appear
Israeli American professor of psychology and behavioral economics Dan Ariely ( ; born April 29, 1967) is an Israeli-American professor and author.He serves as a James B.Duke Professor of psychology and behavioral economics at Duke University .Ariely is the founder of the research institution The Center for Advanced Hindsight, co-founder of the companies Kayma, BEworks, Timeful, Genie and Shapa., the Chief Behavioral Economist of Qapital and the Chief Behavioral Officer of Lemonade .Ariely's TED talks have been viewed over 15 million times.Ariely is the author of the three New York Times best sellers Predictably Irrational , The Upside of Irrationality , and The Honest Truth about Dishonesty , as well as the books Dollars and Sense , Irrationally Yours – a collection of his popular The Wall Street Journal advice column “Ask Ariely”; and Payoff , a short TED book.Ariely appeared in several documentary films, including The Inventor: Out for Blood in Silicon Valley and produced and participated in (Dis)Honesty: The Truth About Lies .In 2018 Ariely was named one of the 50 most influential living psychologists in the world.Dan Ariely | Center for Advanced Hindsight "Kayma" ." "Ted Talks: Dan Ariely on our Buggy Moral Code" " .In Control of Our Own Decisions?" " ." "Dan Ariely: Beware Conflicts of Interest" " .When Dan Ariely found the key to human nature "Irrationally Yours" .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 952902332.
The opening as it stood on October 6, 2023 10 passages from the previous snapshot no longer appear
Israeli-American professor of psychology and behavioral economics Dan Ariely ( ; born April 29, 1967) is an Israeli-American professor and author. He serves as a James B. Duke Professor of psychology and behavioral economics at Duke University . Ariely is the co-founder of several companies implementing insights from behavioral science.Ariely wrote an advice column called Ask Ariely in the WSJ from June 2012 until September 2022. Ariely is the author of the three New York Times best selling books Predictably Irrational , The Upside of Irrationality and The Honest Truth about Dishonesty . He co-produced the documentary (Dis)Honesty: The Truth About Lies .Since 2006, Ariely has faced multiple accusations of data fraud and academic misconduct, which have resulted in an academic suspension and a retracted paper.
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1178464321.
Today
Wikipedia's first sentence called it “israeli professor of behavioral economics”. Today it says “american author and professor of business administration at duke university”. The one-line description Wikipedia serves to search engines and AI systems read “Israeli American professor of psychology and behavioral economics”. It now reads “Israeli-American professor of psychology and behavioral economics (born 1967)”. Read the current article and compare.
2010
2015
2020
Oct '23
2025
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
israeli professor of behavioral economics
Now
american author and professor of business administration at duke university
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.
