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Case file

Ali al-Hadi

Wikipedia's first sentence called it “tenth shia imam”. Today it says “summoned around 848 from medina to the capital samarra by the abbasid caliph al-mutawakkil”.
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

Ali al-Hadi , also known as Imam Ali al-Naqi ( September 8 , 828 – July 1 , 868 ) was the tenth Shia Imam . He was born Ali ibn Muhammad ibn Ali. Ali al Hadi was born in Medina to Muhammad at Taqi and a Moroccan slave named Samana. He was only six when his father died, and when he had to take on the Imamate. Initially he lived in Medina in relative peace, where he mostly engaged in teaching. But upon the caliphate of Al-Mutawakkil , he was summoned to Baghdad and put under house arrest in Samarra , along with his son Hasan al-Askari . He was kept here to stop all communication between himself and his followers. His time in prison was a time of great persecution against the Shia. He would live out his life under house arrest, and died at the age of 40 on July 1, 868. Like his predecessors, it may have been by poison. He was buried at his house in Samarra by his son, who was also the only person to attend his funeral. His burial spot is now an important Shia shrine.1

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 16280755.
Today
Wikipedia's first sentence called it “tenth shia imam”. Today it says “summoned around 848 from medina to the capital samarra by the abbasid caliph al-mutawakkil”. Read the current article and compare.
2005201020152020Oct '232025
militant000011
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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

tenth shia imam

Now

summoned around 848 from medina to the capital samarra by the abbasid caliph al-mutawakkil

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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