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Case file

Abu Isa al-Warraq

Wikipedia's first sentence called it “a 9th-century arab skeptic scholar and critic of islam and religion in general”. Today it says “a 9th-century arab scholar”.
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 2020 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 2020

Abu 'Isa al-Warraq , full name Abu 'Isa Muhammad ibn Harun al-Warraq ( Abū ʿĪsā Muḥammad ibn Hārūn al-Warrāq, 889 – 24 June 994), was a 9th-century Arab skeptic scholar and critic of Islam and religion in general. He was a student of Ibn al-Sarrāj and Ibn Duraid and mentor and friend of scholar Ibn al-Rawandi in whose work The Book of the Emerald he appears.1 A modern scholar of the Quran and critic of Islam , Ibn Warraq , derives his pseudonymous name from al-Warraq. History of the Arabic Written Tradition .2 A History: The Great Doubters and Their Legacy of Innovation from Socrates and Jesus to Thomas Jefferson and Emily Dickinson .

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 914420923.
Today
Wikipedia's first sentence called it “a 9th-century arab skeptic scholar and critic of islam and religion in general”. Today it says “a 9th-century arab scholar”. 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 October 7, and today's defining sentence is their current revision.

Then

a 9th-century arab skeptic scholar and critic of islam and religion in general

Now

a 9th-century arab scholar

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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