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Case file

Tachanun

Wikipedia's first sentence called it “part of judaism 's morning”. Today it says “supplicatory and confessional component of shacharit”. The one-line description Wikipedia serves to search engines and AI systems read “Jewish prayer of supplication”. It now reads “Jewish prayer of supplication A man reciting tachnun”.
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 2025 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 2025

Tachanun or Taḥanun ( Hebrew : תחנון "Supplication"), also called nefilat apayim ( Hebrew : נפילת אפיים "falling on the face"), is part of Judaism 's morning ( Shacharit ) and afternoon ( Mincha ) prayer services; it follows the recitation of the Amidah , the central part of the daily Jewish prayer services. It is also recited at the end of the Selichot service. It is omitted on Shabbat , Jewish holidays , and a list of other celebratory occasions (e.g., in the presence of a groom in the week following his marriage). Most traditions recite a longer prayer on Mondays and Thursdays.

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 1288453507.
Today
Wikipedia's first sentence called it “part of judaism 's morning”. Today it says “supplicatory and confessional component of shacharit”. The one-line description Wikipedia serves to search engines and AI systems read “Jewish prayer of supplication”. It now reads “Jewish prayer of supplication A man reciting tachnun”. 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

part of judaism 's morning

Now

supplicatory and confessional component of shacharit

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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