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Case file

Eric Lander

Wikipedia's first sentence called it “professor of biology at massachusetts institute of technology”. Today it says “american mathematician and geneticist who is a professor of biology at the massachusetts institute of technolog”. Sections present on October 6, 2023 no longer exist: “Contributions to genomics; Beyond genomics”.
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

February 3 , 1957 ) is a Professor of Biology at Massachusetts Institute of Technology (MIT), a member of the Whitehead institute and director of the Whitehead Institute/MIT Centre for Genome Research (WICGR), founder director of the Broad institute of MIT and Harvard Broad Institute aimed at realizing the promise of the human genome for medicine.1 He graduated from Stuyvesant High School in 1974 , and began an academic career as a mathematician .2 At the age of seventeen he had written a paper on quasi perfect numbers for which he won the Westinghouse Prize . He wrote his doctorate on symmetric designs at Oxford University .3 As a Mathematician he studied combinatorics, applications of group representational theory to coding theory.4 He enjoyed mathematics but did not wish to spend his life in such a “monastic career” unsure of what to do next he took up a job teaching managerial economics at Harvard Business School , he also began to write a book on information theory. At the suggestion of his brother Adam Lander he started to look at neurobiology “because there's a lot of information in the brain”. In order to understand mathematical neurobiology he felt he had to study cellular neurobiology this in turn led to studying microbiology this continued down to the level of genetics. But I'm still trying to get the genetics right”. His studies introduced him to David Botstein a geneticist working at MIT. Botstein was working on a way to unravel how subtle differences in complex genetic systems can become disorders like cancer, diabetes, schizophrenia even obesity. Lander then joined Whitehead Institute (1986) and later joined MIT as a geneticist.5 In 1990 he founded W.I.C.G.R. (Whitehead Institute/MIT Center for Genome Research) W.I.C.G.R. is one of the worlds leading centres of genome research and under Doctor Lander’s leadership they have made great progress in developing new methods of analysing mammalian genomes.6 The Whitehead institute have also made important breakthroughs in applying this information to the study of human variation particularly the study of medical genetics.7

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 16438091.
Today
Wikipedia's first sentence called it “professor of biology at massachusetts institute of technology”. Today it says “american mathematician and geneticist who is a professor of biology at the massachusetts institute of technolog”. Sections present on October 6, 2023 no longer exist: “Contributions to genomics; Beyond genomics”. 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

professor of biology at massachusetts institute of technology

Now

american mathematician and geneticist who is a professor of biology at the massachusetts institute of technolog

Sections that no longer exist

Present on October 6, 2023, absent today, with no near-matching heading in the current article and the article shorter overall, so this is not a renamed heading or a topic absorbed into a fuller treatment. 2 sections of 400 characters or more gone since October 6 2023, with the article 510 characters shorter.

  • Contributions to genomics
  • Beyond genomics
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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