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Isaiah Berlin

Wikipedia's first sentence called it “political philosopher and historian of ideas”. Today it says “british social and political theorist”. The one-line description Wikipedia serves to search engines and AI systems read “British philosopher and social and political theorist (1909–1997)”. It now reads “British philosopher (1909–1997)”.
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. 1 tap a number or a side note to jump between them
The opening as it read in 2005

Isaiah Berlin Sir Isaiah Berlin ( June 6 1909 – November 5 1997 ) was a political philosopher and historian of ideas , regarded as one of the leading liberal thinkers of the 20th century .1 [1] Born in Riga , now Latvia , then part of the Russian Empire , he was the first Jew to be elected to a prize fellowship at All Souls College, Oxford ; became the founding president of Wolfson College, Oxford ; and from 1957 to 1967, served as the Chichele Professor of Social and Political Theory at the University of Oxford . He was knighted in 1957, was awarded the Order of Merit in 1971, and was president of the British Academy from 1974 to 1978.2 Berlin's work on liberal theory has had a lasting influence.3 His 1958 essay " Two Concepts of Liberty ", in which he famously distinguished between positive and negative liberty , has informed much of the debate since then on the relationship between liberty and equality .4

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 17836762.
Today
Wikipedia's first sentence called it “political philosopher and historian of ideas”. Today it says “british social and political theorist”. The one-line description Wikipedia serves to search engines and AI systems read “British philosopher and social and political theorist (1909–1997)”. It now reads “British philosopher (1909–1997)”. Read the current article and compare.
2005201020152020Oct '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 2005, and today's defining sentence is their current revision.

Then

political philosopher and historian of ideas

Now

british social and political theorist

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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