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Yiddish dialects

Wikipedia's first sentence called it “subsets of the major regional branches of the yiddish language”. Today it says “varieties of the yiddish language and are divided according to the region in europe where each developed its di”.
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

Yiddish dialects are subsets of the major regional branches of the Yiddish language: Western Yiddish and Eastern Yiddish. Eastern Yiddish, the branch almost exclusively encountered in the contemporary speech community, includes three major dialects: Northeastern or Litvish (spoken in the Baltic States , Belarus , and adjacent areas), Central or Poylish (spoken in Poland , Galicia , areas of the former Austro-Hungarian Empire , including Transylvania and other areas of Central Europe ), and Southeastern or Ukrainish (spoken in most of the Ukraine and Romania ). Western Yiddish included three dialects: Northwestern (spoken in Northern Germany and the Netherlands), Midwestern (spoken in central Germany), and Southwestern (spoken in southern Germany, France, and neighboring regions extending into Northern Italy). These have a number of clearly distinguished regional varieties, such as Judeo-Alsatian , plus many local subvarieties. General references to the "Yiddish language" without qualification are normally taken to apply to Eastern Yiddish, unless the subject under consideration is Yiddish literature prior to the 19th century, in which case the focus is more likely to be on Western Yiddish. Some authors use the term "Southeastern Yiddish" as a collective designation for both Poylish and Ukrainish while still applying the term Northeastern Yiddish to Litvish . The single most populous dialect is Poylish , which together with Ukrainish is used by as many as three quarters of all Yiddish speakers.1

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 366769089.
Today
Wikipedia's first sentence called it “subsets of the major regional branches of the yiddish language”. Today it says “varieties of the yiddish language and are divided according to the region in europe where each developed its di”. 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

subsets of the major regional branches of the yiddish language

Now

varieties of the yiddish language and are divided according to the region in europe where each developed its di

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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