Skip to content
statementVerified

Later Systema editions keep and thicken medicalised human ranks

In 1766–68 Carl Linnaeus’s twelfth edition of Systema Naturae continued the ranked human varieties of 1758, still mixing skin, humoral temperament, and alleged character inside a medical professor’s book. In the causal graph this event weakens Health-System Capacity, a driver that strengthens Hospital beds (per 1,000 people) — a worsening welfare path.

Later Systema editions keep and thicken medicalised human ranks
Read the full account

In 1766–68 Carl Linnaeus’s twelfth edition of Systema Naturae continued the ranked human varieties of 1758, still mixing skin, humoral temperament, and alleged character inside a medical professor’s book. A physician who teaches materia medica also teaches which peoples are phlegmatic or inventive.

Context

He could have dropped moral lines. He did not. Uppsala teaching gave the table classroom force. Printers shared the later edition. Sharing does not erase the author. Later biological racism is reception that found a convenient textbook; the textbook is still his.

If a number is not in the two records named above, it is not supplied here.

Why it matters

Health-knowledge harm path of modest-to-mid weight. High confidence the later edition still ranked varieties. 1758 remains the first expanded table; 1766 is continuance.

Later competitions, monuments, translations, UNESCO listings, museums, and adaptations are not converted into extra lifetime acts.

Who was responsible

Contribution type and responsibility level for each recorded actor — not sole-author shorthand.

  • Carl Linnaeus

    Person

    Direct responsibility

    responsibility level 0.28 · verified

    He continued to issue Systema editions after 1758 with human varieties still ranked. Printers produced the twelfth edition of 1766–68.

What changed

Fact → Driver → Indicator. Relationship strength orders the paths; it is not the observed indicator movement.

    1. FactLater Systema editions keep and thicken medicalised human ranks
    2. weakensDriverHealth-System Capacity
    3. strengthensIndicators (2)Hospital beds (per 1,000 people)
    Worsening path

    impact weight 0.3 · Effect from 1 January 1766 · verified

    • Hospital beds (per 1,000 people)

      via Health-System Capacity

      Worse

      Strengthens · Relationship strength 0.18 (weight 0.3 × strength 0.6)

      Observed

      3.08 Per 1000 people · 1.24 below the normal line (2023)

      Worse than normal

      6 readings, 2018–2023: rose from 3.07 Per 1000 people to 3.08 Per 1000 people.

      Above normal = better

    • Under-five mortality rate (global)

      via Health-System Capacity

      Worse

      Weakens · Relationship strength 0.15 (weight 0.3 × strength 0.5)

      Observed

      37.4 deaths per 1,000 live births · 12.4 above the normal line (2024)

      Worse than normal

      7 readings, 2018–2024: fell from 40 deaths per 1,000 live births to 37.4 deaths per 1,000 live births.

      Above normal = worse

Evidence

The sources behind this fact and its verification state.

Verified2 sources on file
  1. 1.Uppsala University — Linnaeus’ complicated relationship with racismUppsala University · High credibility · verified
  2. 2.Linnean Society — Linnaeus and raceThe Linnean Society of London · High credibility · verified
What the sources establish

Linnean Society at https://www.linnean.org/learning/who-was-linnaeus/linnaeus-and-race (opens in a new tab) notes that later editions carried and adjusted the ranked varieties. Uppsala University at https://www.uu.se/en/news/2021/2021-05-07-linnaeus-complicated-relationship-with-racism (opens in a new tab) independently treats hierarchy as his, with the African always last across editions.

Established: post-1758 Systema editions in his lifetime still ranked human varieties with medicalised traits. Not established: a unique clinic that dosed patients by those lines in 1766. Contribution is recorded as He continued to issue Systema editions after 1758 with human varieties still ranked. Printers produced the twelfth edition of 1766–68. The dated heading stays Later Systema editions keep and thicken medicalised human ranks on 1766-01-01, not a later statue, UNESCO listing, or school film. Later competitions, monuments, and adaptations are refused as extra lifetime acts of this person on this date.

The contribution type is direct. That reading is an impact-path choice, not a property stored on the Fact itself.

Confidence is stated on the impact path, not hidden in adjectives. 1766 continuance is not a later Blumenbach treatise. Mixed effects of Later Systema editions keep and thicken medicalised human ranks are separate paths.

Shared responsibility is part of Later Systema editions keep and thicken medicalised human ranks. Naming Carl Linnaeus does not delete co-authors, institutions, or later transmitters. The lag from 1766-01-01 to any measured indicator is not treated as zero. Alternative explanations — weather, other armies, later statutes, or independent cultural change — remain live where the sources do not close them.

Causal path

How this event connects to drivers and indicators in the graph.

  1. ActorCarl Linnaeus
  2. contributed toFactLater Systema editions keep and thicken medicalised human ranks
  3. weakensDriverHealth-System Capacity
  4. strengthensIndicatorHospital beds (per 1,000 people)

Cite this page

Factrail. (2026). Later Systema editions keep and thicken medicalised human ranks. Factrail. https://factrail.ai/facts/linnaeus-systema-12-1766

https://factrail.ai/facts/linnaeus-systema-12-1766

Accessed 16 October 2026.

By the Factrail desk · Method: how we source and score · Last reviewed

Dispute this factNamed here, or represent someone who is? Request a right of reply.