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Disputed Statements

Claims this atlas currently marks as unsettled or as tested and found false. A debated fact is one scholars hold competing positions on; a debunked one has been checked against the record and found not to hold. Both are kept in view rather than quietly smoothed over, with the reasoning that put each one where it stands.

50 statements.

Hypatia, Birth Year370

Hypatia, Scientists

Standing

Concerns Birth Year

Currently States 370

Historians disagree on her birth year by two decades. One camp, following Richard Hoche's nineteenth century reasoning from the timing of her scholarly output, places her birth around 370 CE, the year recorded here. A second camp argues for a birth around 350 CE, reasoning from ancient descriptions of her as an elderly woman at her death in 415. No contemporary record states her age directly, so the disagreement cannot be settled from the surviving sources.

Source Hypatia (Wikipedia)

Imre Lakatos, DescriptionImre Lakatos was a Hungarian-born philosopher of mathematics and science, born in Debrecen in 1922 and died in London in 1974. He fled Hungary in 1956 after the Soviet suppression of the Hungarian Uprising and settled in Britain, where he taught at the London School of Economics alongside, and eventually succeeded, Karl Popper. His Methodology of Scientific Research Programmes reframes Popper's falsifiability criterion: rather than a single theory being falsified and discarded by one bad result, Lakatos argued science actually proceeds through research programmes, a protected core of assumptions surrounded by auxiliary hypotheses that absorb anomalies, and a programme is judged progressive or degenerating by whether it keeps predicting genuinely new facts or only patches itself to survive old ones. Whether this rescues Popper's demarcation project or quietly concedes its central claim, that a clean falsifying test exists at all, remains argued in the philosophy of science literature; Lakatos himself presented it as a refinement, not a rejection, of falsifiability.

Imre Lakatos, Scientists

Standing

Concerns Description

Currently States Imre Lakatos was a Hungarian-born philosopher of mathematics and science, born in Debrecen in 1922 and died in London in 1974. He fled Hungary in 1956 after the Soviet suppression of the Hungarian Uprising and settled in Britain, where he taught at the London School of Economics alongside, and eventually succeeded, Karl Popper. His Methodology of Scientific Research Programmes reframes Popper's falsifiability criterion: rather than a single theory being falsified and discarded by one bad result, Lakatos argued science actually proceeds through research programmes, a protected core of assumptions surrounded by auxiliary hypotheses that absorb anomalies, and a programme is judged progressive or degenerating by whether it keeps predicting genuinely new facts or only patches itself to survive old ones. Whether this rescues Popper's demarcation project or quietly concedes its central claim, that a clean falsifying test exists at all, remains argued in the philosophy of science literature; Lakatos himself presented it as a refinement, not a rejection, of falsifiability.

Whether the Methodology of Scientific Research Programmes rescues Popperian falsificationism or effectively abandons its central claim, since a research programme's protective belt can absorb almost any anomaly, is argued between Lakatos's own defenders and critics including Feyerabend, and is not settled by this atlas.

Source Imre Lakatos (Stanford Encyclopedia of Philosophy)

Jabir ibn Hayyan, NationalityDisputed: an Arab of the Kufa-based Azd tribe by some accounts, or a non-Arab Persian client (mawla) of the Azd by others; associated with Kufa, Iraq and Khurasan, Iran

Jabir ibn Hayyan, Scientists

Standing

Concerns Nationality

Currently States Disputed: an Arab of the Kufa-based Azd tribe by some accounts, or a non-Arab Persian client (mawla) of the Azd by others; associated with Kufa, Iraq and Khurasan, Iran

Ibn al-Nadim reports Jabir hailed from Khurasan but spent most of his life in Kufa; whether he was an Arab member of the Azd tribe or a non-Arab Persian client of the Azd is disputed in the sources, and the historicity of Jabir as a single historical individual is itself disputed among modern scholars (see the linked open question).

Source Jabir ibn Hayyan (Wikipedia)

Jet Stream, Proposed ByCredited variously; Wasaburo Oishi is often named as first scientific discoverer

Jet Stream, Concepts

Standing

Concerns Proposed By

Currently States Credited variously; Wasaburo Oishi is often named as first scientific discoverer

Multiple figures are credited across different eras: Elias Loomis hypothesized a strong upper-air current in the 19th century, Wasaburo Oishi tracked it near Mount Fuji in the 1920s but published in Esperanto so the work went largely unnoticed outside Japan, Wiley Post drew attention in 1933, Heinrich Seilkopf coined a German name in 1939, and understanding was cemented by Allied pilots during World War Two. No single proposer is agreed on.

Source Jet Stream (Wikipedia)

Jim Gray, Death Year2007

Jim Gray, Scientists

Standing

Concerns Death Year

Currently States 2007

Gray disappeared at sea off the California coast on January 28, 2007 (infobox: disappeared_date, disappeared_place Waters near San Francisco) while sailing alone; a court declared him dead in absentia on January 28, 2012 (lead section: declared dead in absentia 2012). No body or wreckage was ever recovered, so neither the exact date nor the fact of death is settled; 2007 is recorded here as the disappearance year, not a confirmed death year.

Source Wikipedia: Jim Gray

Linguistics, Founded Year1786

Linguistics, Disciplines

Standing

Concerns Founded Year

Currently States 1786

Sir William Jones's 1786 address to the Asiatic Society of Bengal, proposing a common ancestor for Sanskrit, Greek and Latin, is commonly cited as founding comparative and historical linguistics; the discipline's roots reach back much further, to Panini's Sanskrit grammar of around the 4th century BCE, and it only became a university subject through 19th century scholars such as Franz Bopp and Jacob Grimm.

Source Wikipedia: Linguistics

Medicine, Founded Year1543

Medicine, Disciplines

Standing

Concerns Founded Year

Currently States 1543

Andreas Vesalius's De humani corporis fabrica (1543), based on direct human dissection rather than inherited authority, is commonly cited as founding anatomically grounded scientific medicine; medicine as a practice is far older, reaching back through Ibn Sina's Canon of Medicine and Hippocratic writings to antiquity.

Source Medicine (Wikipedia)

Microscope, Invented Year1590

Microscope, Instruments

Standing

Concerns Invented Year

Currently States 1590

Britannica states plainly that the inventor is not definitively known; the earliest microscopes are traditionally credited to Dutch spectacle makers Hans and Zacharias Janssen and to Hans Lippershey around 1590, but the attribution traces to 1655 testimony given decades after the fact and is treated by historians as unreliable.

Source Microscope (Britannica)

Millikan Oil Drop Experiment, Key FindingEvery droplet's measured charge was a small whole-number multiple of one base value, about 1.5924(17) times ten to the minus nineteen coulombs, showing electric charge is quantized and providing an early precise measurement of the elementary charge.

Millikan Oil Drop Experiment, Experiments

Standing

Concerns Key Finding

Currently States Every droplet's measured charge was a small whole-number multiple of one base value, about 1.5924(17) times ten to the minus nineteen coulombs, showing electric charge is quantized and providing an early precise measurement of the elementary charge.

Millikan's student and uncredited co-experimenter Harvey Fletcher, and later historians of science including Gerald Holton, raised documented disputes over authorship credit and over whether Millikan selectively excluded droplet measurements from the published dataset; David Goodstein's later investigation concluded the exclusions were of incomplete observation series rather than unfavourable results. See the paired Dissent record on this fact.

Source Oil Drop Experiment (Wikipedia)

Mineralogy, Founded Year1669

Mineralogy, Disciplines

Standing

Concerns Founded Year

Currently States 1669

Nicholas Steno 1669 observation of the law of constancy of interfacial angles in quartz crystals, the first law of crystallography, is recorded here as mineralogy modern scientific founding. Georgius Agricola De Natura Fossilium (1546) is an earlier descriptive precedent, and Rene Just Hauy later work built crystallography into the field own foundation.

Source Mineralogy (Wikipedia)

Occam's Razor, DescriptionOccam's razor is the principle that, among explanations that fit the evidence equally well, the one that assumes the fewest new entities or the least additional complexity should be preferred. It is named for the fourteenth-century English Franciscan friar William of Ockham, though the underlying preference for simple explanations is older and Ockham himself never phrased it as a single maxim; the Latin tag often attached to him, entities must not be multiplied beyond necessity, was coined by later writers summarising his views. Its philosophical standing is genuinely debated: it is not a law of nature and cannot prove a simpler theory true, only recommend it as the better starting point, and philosophers disagree about whether simplicity is really evidence of truth or merely a practical convenience for working scientists, a live question the Stanford Encyclopedia entry cited here surveys at length.

Occam's Razor, Concepts

Standing

Concerns Description

Currently States Occam's razor is the principle that, among explanations that fit the evidence equally well, the one that assumes the fewest new entities or the least additional complexity should be preferred. It is named for the fourteenth-century English Franciscan friar William of Ockham, though the underlying preference for simple explanations is older and Ockham himself never phrased it as a single maxim; the Latin tag often attached to him, entities must not be multiplied beyond necessity, was coined by later writers summarising his views. Its philosophical standing is genuinely debated: it is not a law of nature and cannot prove a simpler theory true, only recommend it as the better starting point, and philosophers disagree about whether simplicity is really evidence of truth or merely a practical convenience for working scientists, a live question the Stanford Encyclopedia entry cited here surveys at length.

Source Simplicity (Stanford Encyclopedia of Philosophy)

Occam's Razor, Proposed ByWilliam of Ockham (traditional, contested attribution)

Occam's Razor, Concepts

Standing

Concerns Proposed By

Currently States William of Ockham (traditional, contested attribution)

Traditionally credited to William of Ockham, but he never stated it as a single maxim and the familiar Latin phrasing was coined by later writers summarising him; the preference for simple explanations over complex ones also predates Ockham in earlier philosophy, so the attribution is a convenient shorthand rather than a settled origin.

Source Simplicity (Stanford Encyclopedia of Philosophy)

Particle Physics, Founded Year1932

Particle Physics, Disciplines

Standing

Concerns Founded Year

Currently States 1932

No single founding date is agreed among historians of science. Candidates include 1932 (Carl Anderson's discovery of the positron in cosmic rays, confirming Dirac's prediction of antimatter), June 2 1947 (the Shelter Island Conference, often dated as the birth of modern theoretical high-energy physics), and 1950 (the first elementary particle, the neutral pion, discovered using a particle accelerator rather than cosmic rays). The field is more often described as emerging from a convergence of nuclear physics, cosmic-ray studies and quantum field theory than from a single founding act.

Source The Rise of Particle Physics (arXiv preprint)

Paul Feyerabend, DescriptionPaul Feyerabend was an Austrian-born philosopher of science, born in Vienna on 13 January 1924 and died in Genolier, Switzerland, on 11 February 1994. He held positions at the London School of Economics and, for most of his career from the 1960s onward, the University of California, Berkeley. His 1975 book Against Method: Outline of an Anarchistic Theory of Knowledge argues from detailed case studies in the history of astronomy and physics, most centrally Galileo, that no fixed methodological rule survives contact with how major scientific advances actually happened; scientists who followed the rules of their day as strictly as later textbooks imply would often have discarded the theories now considered their greatest successes. He summarised the resulting position, often shortened to the slogan anything goes, as epistemological anarchism: not that method or evidence do not matter, but that no single rule holds across every context science has actually faced. The position remains one of the most contested in twentieth-century philosophy of science, read by supporters as an honest account of scientific practice and by critics as license for relativism about which claims are worth believing.

Paul Feyerabend, Scientists

Standing

Concerns Description

Currently States Paul Feyerabend was an Austrian-born philosopher of science, born in Vienna on 13 January 1924 and died in Genolier, Switzerland, on 11 February 1994. He held positions at the London School of Economics and, for most of his career from the 1960s onward, the University of California, Berkeley. His 1975 book Against Method: Outline of an Anarchistic Theory of Knowledge argues from detailed case studies in the history of astronomy and physics, most centrally Galileo, that no fixed methodological rule survives contact with how major scientific advances actually happened; scientists who followed the rules of their day as strictly as later textbooks imply would often have discarded the theories now considered their greatest successes. He summarised the resulting position, often shortened to the slogan anything goes, as epistemological anarchism: not that method or evidence do not matter, but that no single rule holds across every context science has actually faced. The position remains one of the most contested in twentieth-century philosophy of science, read by supporters as an honest account of scientific practice and by critics as license for relativism about which claims are worth believing.

Feyerabend's epistemological anarchism, that no methodological rule holds without exception across the history of science, is read by supporters as an honest reckoning with how science actually proceeded and by critics, including working scientists and other philosophers of science, as tipping into relativism about whether any claim can be shown more credible than another; this atlas records the position and the dispute rather than resolving it.

Source Paul Feyerabend (Stanford Encyclopedia of Philosophy)

Peter Medawar, BirthplaceRio de Janeiro or Petropolis, Brazil

Peter Medawar, Scientists

Standing

Concerns Birthplace

Currently States Rio de Janeiro or Petropolis, Brazil

The article itself gives two different reported birthplaces in the same sentence, Rio de Janeiro and Petropolis; both are recorded here rather than silently picking one.

Source Peter Medawar (Wikipedia)

Philosophy of Science, Founded Year1620

Philosophy of Science, Disciplines

Standing

Concerns Founded Year

Currently States 1620

Francis Bacon's Novum Organum (1620) set out an inductive method for acquiring scientific knowledge and is commonly cited as founding philosophy of science as a subject of study; the modern analytic discipline is more often dated to Karl Popper's Logik der Forschung (1934), which reframed the field around falsifiability.

Source Karl Popper (Stanford Encyclopedia of Philosophy), Stephen Thornton

Pythagoras, Death PlaceCroton or Metapontum

Pythagoras, Scientists

Standing

Concerns Death Place

Currently States Croton or Metapontum

Sources give either Croton or Metapontum.

Source Pythagoras, Wikipedia

Solid-State Physics, Founded Year1912

Solid-State Physics, Disciplines

Standing

Concerns Founded Year

Currently States 1912

Max von Laue's 1912 discovery that X-rays diffract through crystals, followed within a year by William Henry and William Lawrence Bragg's first crystal structure determinations, opened solid-state physics as a field distinct from general physics. A competing, later origin point is 1947, when John Bardeen, Walter Brattain and William Shockley's invention of the transistor turned semiconductor solid-state physics into a major research and industrial program.

Source 100th Anniversary of the First Crystal Structure Determinations (OUPblog)

Statistical Significance, DescriptionStatistical significance is a measure of how likely an observed result would be if there were really no effect at all, formalised by Ronald Fisher in his 1925 book Statistical Methods for Research Workers around the p-value and the conventional threshold of p less than 0.05. It became the standard test across experimental science for deciding whether a result is worth taking seriously. It is also one of the most criticised tools in modern statistics: a result below the threshold is not the same as a result that matters in practice, the 0.05 cutoff is an arbitrary convention Fisher himself did not intend as a rigid rule, and the American Statistical Association issued a formal 2016 statement warning against treating it as a substitute for judgment; this contested standing is a live thread in the reproducibility crisis entry below.

Statistical Significance, Concepts

Standing

Concerns Description

Currently States Statistical significance is a measure of how likely an observed result would be if there were really no effect at all, formalised by Ronald Fisher in his 1925 book Statistical Methods for Research Workers around the p-value and the conventional threshold of p less than 0.05. It became the standard test across experimental science for deciding whether a result is worth taking seriously. It is also one of the most criticised tools in modern statistics: a result below the threshold is not the same as a result that matters in practice, the 0.05 cutoff is an arbitrary convention Fisher himself did not intend as a rigid rule, and the American Statistical Association issued a formal 2016 statement warning against treating it as a substitute for judgment; this contested standing is a live thread in the reproducibility crisis entry below.

Source Statistical Significance (Britannica)

Statistics, Founded Year1901

Statistics, Disciplines

Standing

Concerns Founded Year

Currently States 1901

Karl Pearson founded the journal Biometrika in 1901, commonly cited as marking statistics' emergence as its own mathematical discipline; Thomas Bayes's posthumously published 1763 essay is an earlier theoretical root, and Pearson did not found the world's first university statistics department, at University College London, until 1911.

Source Statistics (Wikipedia)