Wikipedia's first sentence called it “senior chabad rabbi”. Today it says “senior chabad rabbi who worked for the lubavitcher rebbe”. The one-line description Wikipedia serves to search engines and AI systems read “Chabad rabbi (1930–2021) Reb”. It now reads “Chabad rabbi (1930–2021)”.
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 2015 one. Red dashes: removed from Wikipedia since.Pale dots: rewritten; the numbered note shows what it says now.Red text: written in or rewritten since the previous snapshot.1 tap a number or a side note to jump between them
The opening as it read in 2015
Yoel Kahan is a senior Chabad rabbi, who served as the leading Choizer and Meiniach for the late Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson .1He served in this role from the beginning of the Rebbe's leadership in 1950 until his death in 1994. Today he continues to serve as the senior Mashpia in the central Lubavitcher yeshiva at 770 Eastern Parkway . His position as leading Choizer and Meiniach makes him the default authority on the Rebbe's teachings specifically, and he is universally recognized as the greatest scholar of general Chabad Chassidic doctrine and thought. He is referred to familiarly amongst Chabad Chasidim as Reb Yoel . He is the son of Refoel Nachman ( Folle ) Kahn, author of Shemu'os VeSippurim .2
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 637481325.
The opening as it stood in 2010
Yoel Kahn , also spelled Kahan, is a senior Chabad rabbi, Mashpia , choizer and community leader. He has served in this role for four decades. Until 1966 he also served as Meiniach . He lives in Crown Heights , Brooklyn , New York . He is referred to familiarly amongst Chabad Chasidim as Reb Yoel , or just Yoel . He is the son of Refoel Nachman ( Folle ) Kahn, author of Shemu'os VeSippurim , a compilation of Chasidic stories. He serves as the main Mashpia in the central Lubavitcher yeshiva of 770 Eastern Parkway .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 361153162.
The opening as it stood on October 6, 2023 4 passages from the previous snapshot no longer appear
Chabad rabbi (1930–2021) Reb Yoel Kahan (February 14, 1930 – July 15, 2021) was a senior Chabad rabbi, who served as the leading hoizer and meiniach for the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson .His position as leading choizer and meiniach made him the default authority on the Rebbe's teachings and one of the most universally recognized scholars of general Chabad Chassidic doctrine.
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1170175519.
The opening as it stood in 2025 1 passage from the previous snapshot no longer appear
Chabad rabbi (1930–2021) Yoel Kahn ( Hebrew : יואל כהן ; February 14, 1930 – July 15, 2021) was a senior Chabad rabbi who worked for the Lubavitcher Rebbe , Menachem Mendel Schneerson .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1296849990. This is our newest snapshot; the live article may have moved again since.
Today
Wikipedia's first sentence called it “senior chabad rabbi”. Today it says “senior chabad rabbi who worked for the lubavitcher rebbe”. The one-line description Wikipedia serves to search engines and AI systems read “Chabad rabbi (1930–2021) Reb”. It now reads “Chabad rabbi (1930–2021)”. Read the current article and compare.
2010
2015
2020
Oct '23
2025
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
senior chabad rabbi
Now
senior chabad rabbi who worked for the lubavitcher rebbe
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.
