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Fourth Council of the Lateran

In 2005 Wikipedia's first sentence called it “summoned by pope innocent iii with his bull of april 19”. Today it says “convoked by pope innocent iii in april 1213 and opened at the lateran palace in rome on 11 november 1215”.
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 2026-08-02. In 2005 Wikipedia's first sentence called it “summoned by pope innocent iii with his bull of april 19”. Today it says “convoked by pope innocent iii in april 1213 and opened at the lateran palace in rome on 11 november 1215”.
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

Fourth Council of the Lateran was summoned by Pope Innocent III with his Bull of April 19 , 1213 .1 The assembly took place in November, 1215 .2 It was the 12th ecumenical council and is sometimes called "the General Council of Lateran" due to the attendance by seventy-one patriarchs and metropolitans, four hundred and twelve bishops , and nine hundred abbots and priors.3 Innocent III stated his purposes as the defence of the Catholic faith, for the aid to the Crusader States in Palestine , and to establish the liberty of the Church from lay investiture and other lay interference. The pope presented to the council seventy decrees; these were considered along with measures against heretics , and the organisation of the Fifth Crusade . The council did little more than rubber-stamp the decrees presented to them. The decrees included: Exposition of the faith and of the dogma of transubstantiation Procedure and penalties against heretics and their protectors Proclamation of the papal primacy - After the pope, primacy is attributed to the patriarchial sees in the following order: Constantinople (at this time there was a Latin Patriarch ) Alexandria Antioch Jerusalem Rules on the conduct of the clergy including against irregularities: incontinence drunkenness hunting attendance at farces and histrionic exhibitions performing of surgical operations conducting trials by ordeal or combat the Omnis utriusque sexus (also called the Easter Duty), which commands every Christian who has reached the years of discretion to confess all their sins at least once a year to their priest Jews and Muslims shall wear a special dress to enable them to be distinguished from Christians. The council also confirmed the elevation of Frederick II to the position of Holy Roman Emperor.4

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 15909145.
Today
In 2005 Wikipedia's first sentence called it “summoned by pope innocent iii with his bull of april 19”. Today it says “convoked by pope innocent iii in april 1213 and opened at the lateran palace in rome on 11 november 1215”. Read the current article and compare.
2005201020152020Oct '232025
antisemitism000001
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 between 2005 and 2025.

Then

summoned by pope innocent iii with his bull of april 19

Now

convoked by pope innocent iii in april 1213 and opened at the lateran palace in rome on 11 november 1215

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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