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Case file

Fall of Constantinople

In 2005 Wikipedia's first sentence called it “conquest of the byzantine capital by the ottoman empire under the command of sultan mehmed ii”. Today it says “watershed moment of the late middle ages”.
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

Fall of Constantinople was the conquest of the Byzantine capital by the Ottoman Empire under the command of Sultan Mehmed II , on Tuesday , May 29 , 1453 .1 This marked not only the final destruction of the Eastern Roman Empire , and the death of Constantine XI , the last Roman Emperor , but also the strategic conquest crucial for Ottoman rule over the Eastern Mediterranean and Balkans .2

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 17944751.
Today
In 2005 Wikipedia's first sentence called it “conquest of the byzantine capital by the ottoman empire under the command of sultan mehmed ii”. Today it says “watershed moment of the late middle ages”. Read the current article and compare.
2005201020152020Oct '232025
disputed000011
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

conquest of the byzantine capital by the ottoman empire under the command of sultan mehmed ii

Now

watershed moment of the late middle ages

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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