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Case file

Colegio Olamí ORT

Wikipedia's first sentence called it “private k-12 school in mexico city”. Today it says “private educational institution that belongs to ort”.
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 2020 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 2020

It is also known by its acronym, CIM, or as the Idishe , the first word in its Yiddish name. The school was founded in 1924, when a group of immigrants decided to create an educational institution for the children of Jewish immigrants arriving in Mexico . The school first operated in Colombia No. 39; it moved to Colombia No. 12 from 1925 through 1927. It then moved to Naranjo no. 267 and grew significantly during the 1930s, with the first 6th grade graduation taking place in 1933. In 1935, it moved to San Lorenzo no. 290, where it would remain until the 1970s. The school began to operate a Secundaria (grades 7 through 9) in 1936, with the first 9th grade graduation taking place in 1938. It also began operating a kindergarten in 1936. The school added a Preparatoria (grades 10 and 11) in 1948, and when Mexico switched to a 12 grade system in the mid 1960s, it added a grade 12.1 The school is currently located in Loma del Recuerdo no. 44 in Vista Hermosa, Mexico City.

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 940619672.
Today
Wikipedia's first sentence called it “private k-12 school in mexico city”. Today it says “private educational institution that belongs to ort”. 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

private k-12 school in mexico city

Now

private educational institution that belongs to ort

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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