Wikipedia's first sentence called it “professor”. Today it says “italian-born israeli demographer”.
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.
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The opening as it read in 2015
Sergio DellaPergola (born Trieste , Italy , September 7, 1942) is an Italian-born Israeli demographer and statistician.1He is a professor and demographic expert, widely acknowledged as the leading authority in demography and statistics related to the Jewish population all over the world.2Born into an Italian-Jewish family, DellaPergola made aliyah to Israel in 1966. He holds an M.A. from the University of Pavia and a Ph.D. from the Hebrew University of Jerusalem and is a Professor Emeritus of Population Studies at the Hebrew University ’s Avraham Harman Institute of Contemporary Jewry, where he was the Institute Chair and Director of the Division of Jewish Demography and Statistics and held the Shlomo Argov Chair in Israel- Diaspora Relations. Berman Institute – North American: 59. : Cite journal requires |journal= ( help )3
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 659886068.
The opening as it stood in 2010
The Avraham Harman Institute of Contemporary Jewry, Hebrew University of Jerusalem . Professor Della Pergola is widely acknowledged as the leading authority in demography and statistics related to Jewish population all over the world. In 1999, he was given the Marshall Sklare Award and his award presentation was entitled: "Thoughts of a Jewish Demographer in the Year 2000."
Red text was written in or rewritten since the previous snapshot. Their copy is revision 358624074.
The opening as it stood in 2020 4 passages from the previous snapshot no longer appear
Israeli demographer and statistician Sergio Della Pergola Sergio Della Pergola (born September 7, 1942 in Trieste , Italy ) is an Israeli demographer and statistician.He is a professor and demographic expert, specifically in demography and statistics related to the Jewish population .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 940323565.
The opening as it stood on October 6, 2023
Israeli demographer and statistician Sergio Della Pergola Sergio Della Pergola ( ; born September 7, 1942, in Trieste , Italy) is an Italian-Israeli demographer and statistician. He is a professor and demographic expert, specifically in demography and statistics related to the Jewish population .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1138232243.
The opening as it stood in 2025 2 passages from the previous snapshot no longer appear
Israeli demographer and statistician Sergio Della Pergola ( Hebrew : סרג'ו דלה-פרגולה ; born 7 September 1942) is an Italian-born Israeli demographer, statistician, and professor.He is an expert in demography and statistics related to the global Jewish population .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1284131533. This is our newest snapshot; the live article may have moved again since.
Today
Wikipedia's first sentence called it “professor”. Today it says “italian-born israeli demographer”. 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
professor
Now
italian-born israeli demographer
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.
