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Case file

Monar Jonban

Wikipedia's first sentence called it “mosque located in isfahan in iran”. Today it says “mosque and mausoleum”.
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 2010 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 2010

Monar Jonban (Shaking Minarets) is a mosque located in Isfahan in Iran .1 It was built in 14th century to cover the grave of Amu Abdollah Soqla .2 Its special feature is that if either of the minarets is shaken, the other minaret will vibrate as well.3 The eivan and porch were probably erected shortly after 1316 to cover the grave of Amu Abdollah Soqla, a hermit, who was buried here. The minarets are of later, probably Safavid, origin, and are largely responsible for the fame of the otherwise unremarkable shrine. The roof above the shrine contains some good, but unremarkable brickwork. Because of the ratio between the height and width of the minarets and the width of the eivan, if you climb into one minaret and shake it, the other will shake in unison. This constant shaking has been responsible for considerable structural damage, although this is locally blamed on British interference! You can experiment with the phenomenon on this site by clicking on the left minaret in the image above while will make the right one shake - although rather more than the real ones do! There is another pair of shaking minarets built during the time of Oljeitu, at Oshtorjan, although these have lost the upper two thirds. The wooden beams on the upper part of the minarets have been placed there to facilitate the shaking of the minarets, but the presence of wood in the brickwork causes other complications. Shaking is in theory restricted to once every twenty minutes, however, particularly during holidays, there is a constant stream of visitors who experiment with the phenomenon, and the visitor will have ample chance to observe it from ground level, without running the risk of being blamed for any further dereliction. According to Honarfar, the porch is 10 metres high and 10 metres in width, the minarets are 7 metres taller and are 4 metres in circumference.4

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 363172575.
Today
Wikipedia's first sentence called it “mosque located in isfahan in iran”. Today it says “mosque and mausoleum”. Read the current article and compare.
201020152020Oct '232025
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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

mosque located in isfahan in iran

Now

mosque and mausoleum

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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