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Case file

Abu Abdallah al-Shi'i

Wikipedia's first sentence called it “da'i for the isma'ilis in yemen and north africa mainly among the kutama berbers”. Today it says “isma'ili missionary”. The one-line description Wikipedia serves to search engines and AI systems read “Isma'ilis Da'i Al-Husayn ibn Ahmad ibn Muhammad ibn Zakariyya , better known as”. It now reads “10th-century Iraqi Isma'ili missionary”.
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.
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The opening as it read in 2015

Abu 'Abdullah al-Husayn ibn Ahmad ibn Zakariyya al-Shi'i ( Arabic : ابو عبد الله الشيعي , Abū 'Abd Allāh ash-Shi'ī ) (executed February 28, 911) was a Da'i for the Isma'ilis in Yemen and North Africa mainly among the Kutama Berbers , whose teachings influenced the rise of the Fatimid dynasty. He was born in Kufa in Iraq (or Sanaa , according to some accounts) and was active in the administration of the Abbasid Caliphate , before he began to associate with Ismaili teachers. At first he proselytised under the guidance of Ibn Hawshab in Yemen and Mecca . During a pilgrimage to Mecca in 279 A.H. /892 CE , he met some Kutama Berbers that boasted of their independence and autonomy from the Aghlabids . Abu 'Abdullah sensed a chance and decided to follow their invitation to the Maghrib where he arrived in 280/893. After successfully preaching the Ismaili doctrine among the Sanhaja , he was able to form a powerful army consisting of Berber peasants. He began conquering the cities of Ifriqiya up to the point where he finally took over ar-Raqqada, the palace city of the Aghlabids near Kairuan in 909. All this had been done by him to prepare for the appearance of Ubayd Allah al-Mahdi Billah , the imam -caliph of the Fatimids . Al-Mahdi was rescued from a prison in Sijilmasa (present-day Morocco ) and proclaimed as caliph , ruling from the former residence of the Aghlabids. Al-Shi'i had hoped that al-Mahdi would be a spiritual leader, and leave the administration of secular affairs to him, but he was soon disappointed. After being suspected of complicity in a revolt of Kutama leaders, he was put to death in 911.1

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 650625259.
Today
Wikipedia's first sentence called it “da'i for the isma'ilis in yemen and north africa mainly among the kutama berbers”. Today it says “isma'ili missionary”. The one-line description Wikipedia serves to search engines and AI systems read “Isma'ilis Da'i Al-Husayn ibn Ahmad ibn Muhammad ibn Zakariyya , better known as”. It now reads “10th-century Iraqi Isma'ili missionary”. 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

da'i for the isma'ilis in yemen and north africa mainly among the kutama berbers

Now

isma'ili missionary

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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