Wikipedia's first sentence called it “arab-israeli biologist and physician who is working as a professor in the department of molecular genetics at t”. Today it says “palestinian biologist”.
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 2025
Jacob H. Hanna ( Arabic : Yaqub or Yaoub ; born 26 August 1979) is a Palestinian Arab-Israeli biologist who is working as a Full Professor in the Department of Molecular Genetics at the Weizmann Institute of Science in Rehovot , Israel . An expert in embryonic stem cell research , he is most recognized for developing the first bona fide stem cell-derived (synthetic) embryo models (also known as "complete embryo models"or "Whole Embryo Models" or "SEMs") from stem cells in the petri dish in mice and humans. To achieve this, he first developed a technique for extended culturing mouse embryos outside the uterus ( ex utero ) in 2021 capturing development from before gastrulation until late organogenesis outside the uterus, subsequently applying his technique for making the first high-fidelity stem cell-derived whole embryo models of mice in 2022, and then of human in 2023 that can be made solely from embryonic pluripotent stem cells and outside the womb. Hanna pioneered the extended static and dynamic post-implantation ex utero whole embryo growth platform that was critical for enabling the synthetic complete embryo model establishment, and also pioneered developing the technology to generate alternative naive-like and naive pluripotent states in humans, that correspond to more early stages in development and retain an enhanced potential to make essential extra-embryonic tissue (placenta and yolk-sac), which proved essential for generating the first complete synthetic embryo models by his team and solely from such naive pluripotent cells. The Week . 18 March 2021 . The New York Times . The Independent . 2022-08-02 .
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 1298072732.
The opening as it stood on October 6, 2023
Israeli Arab researcher in molecular biochemistry Jacob H. Hanna ( Arabic : Yaqub or Yaoub ; born 26 August 1979) is a Arab-Israeli biologist and physician who is working as a professor in the Department of Molecular Genetics at the Weizmann Institute of Science in Rehovot , Israel . An expert in embryonic stem cell research , he is most recognized for developing a technique for extended culturing mouse embryos outside the uterus ( ex utero ) in 2021, subsequently applying his technique for making the first synthetic embryos of mice in 2022, and then of human in 2023. Hanna has a PhD in microbiology and immunology and an MD in clinical medicine from the Hebrew University of Jerusalem . To train in stem cell research, he worked from 2007 to 2011 as a Helen Hay Whitney postdoctoral fellow and Genzyme postdoctoral fellow at the Whitehead Institute for Biomedical Research at MIT, Cambridge, Massachusetts, under Rudolf Jaenisch . In 2011, Hanna joined the Weizmann Institute of Science as an assistant professor, and has been there ever since and in 2018 Hanna received academic tenure and promotion at the Department of Molecular Genetics in the Weizmann Institute of Science. Hanna was listed in 2014 among top 40 under 40 leading international scientists by Cell journal and elected to the European Molecular Biology Organization in 2018. In 2021, he was announced as the top thinker of the year 2021 by Prospect magazine for his works on embryology. The New York Times . The Independent . 2022-08-02 . The New York Times . "האקדמיה הלאומית הישראלית למדעים The Israel Academy of Sciences and Humanities - Jacob Hanna" . The Israel Academy of Sciences and Humanities .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1178190892.
Today
Wikipedia's first sentence called it “arab-israeli biologist and physician who is working as a professor in the department of molecular genetics at t”. Today it says “palestinian biologist”. Read the current article and compare.
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 2023, and today's defining sentence is their current revision.
Then
arab-israeli biologist and physician who is working as a professor in the department of molecular genetics at t
Now
palestinian biologist
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.
