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Case file

David Samuel, 3rd Viscount Samuel

Wikipedia's first sentence called it “grandson of herbert samuel and thus also a second cousin of rosalind franklin”. Today it says “anglo - israeli chemist and neurobiologist”.
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 2005 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 2005

David Samuel, 3rd Viscount Samuel , (born 1922 ) is the grandson of Herbert Samuel and thus also a second cousin of Rosalind Franklin .1 He was one of the founding fathers of the Faculty of Chemistry at the Weizmann Institute of Science . Late in his career, his scientific interests moved from physical chemistry (particularly chemical kinetics ) to neurobiology . He is the author of the book Memory: How We Use It, Lose It and Can Improve It .2 He is almost certainly the only Israeli to have been a serving member of the British House of Lords .3

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 17481213.
Today
Wikipedia's first sentence called it “grandson of herbert samuel and thus also a second cousin of rosalind franklin”. Today it says “anglo - israeli chemist and neurobiologist”. Read the current article and compare.
2005201020152020Oct '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 2005, and today's defining sentence is their current revision.

Then

grandson of herbert samuel and thus also a second cousin of rosalind franklin

Now

anglo - israeli chemist and neurobiologist

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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