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Case file

Hymn

Wikipedia's first sentence called it “song specifically written as a song of praise”. Today it says “type of song”. The one-line description Wikipedia serves to search engines and AI systems read “Type of song”. It now reads “Religious song for the purpose of adoration or prayer "”.
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

A writer of hymns is known as a hymnist or hymnodist , and the process of singing a hymn is called hymnody ; the same word is used for the collectivity of hymns belonging to a particular denomination or period (e.g. "nineteenth century Methodist hymnody" would mean the body of hymns written and/or used by Methodists in the nineteenth century). Books called hymnals are collections of hymns, which may or may not include music. Ancient hymns include the Great Hymn to the Aten , composed by the pharaoh Akhenaten , and the Vedas , a collection of hymns in the tradition of Hinduism . The Western tradition of hymnody begins with the Homeric Hymns , a collection of ancient Greek hymns, the oldest of which were written in the 7th century BCE in praise of the gods of Greek mythology .1

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 15911348.
Today
Wikipedia's first sentence called it “song specifically written as a song of praise”. Today it says “type of song”. The one-line description Wikipedia serves to search engines and AI systems read “Type of song”. It now reads “Religious song for the purpose of adoration or prayer "”. Read the current article and compare.
2005201020152020Oct '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 2005, and today's defining sentence is their current revision.

Then

song specifically written as a song of praise

Now

type of song

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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