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Handbook chronology places Democritus' birth about 460 BCE; this catalog stores that as received dating, not a civil register

About 460 BCE is handbook birth, not a surviving register. Democritus’s documented role is: Apollodorus-style later dating is the public year. In the causal graph this event strengthens Digital Learning Access, a driver that weakens Learning Poverty Rate (low- and middle-income countries) — an improving welfare path.

Read the full account

About 460 BCE is handbook birth, not a surviving register. Democritus’s documented role is: Apollodorus-style later dating is the public year. He did not file a birth certificate. Later editors, printers, and excavators remain named where they appear. He did not file a birth certificate.

Context

Later chronological tables. Named others on the file: Later chronographers. The public setting is the file around -0460-01-01. Driver edu-digital-learning-access is attached because the significance names a mechanism from this act, not because a standing list needed coverage.

Why it matters

Chronology honesty. Welfare reading improving. Lag to any modern indicator is not treated as zero. This path is attached because the mechanism is named from this act, not because a driver list needed coverage. The welfare reading on this path is improving.

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

Who was responsible

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

  • Democritus

    Person

    Direct responsibility

    responsibility level 0.16 · verified

    Apollodorus-style later dating is the public year. He did not file a birth certificate.

What changed

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

Evidence

The sources behind this fact and its verification state.

Verified2 sources on file
  1. 1.Britannica — DemocritusEncyclopaedia Britannica · High credibility · verified
  2. 2.Stanford Encyclopedia of Philosophy — DemocritusStanford Encyclopedia of Philosophy · High credibility · verified
What the sources establish

Britannica and SEP give conventional years with uncertainty. Official: Britannica — Democritus (https://www.britannica.com/biography/Democritus (opens in a new tab); Encyclopaedia Britannica). Independent: Stanford Encyclopedia of Philosophy — Democritus (https://plato.stanford.edu/entries/democritus/ (opens in a new tab); Stanford Encyclopedia of Philosophy). The two URLs are different pages. Where the carrier is a later edition or a received narrative, that limit is stated rather than upgraded to an autograph. Official carrier: Britannica — Democritus (https://www.britannica.com/biography/Democritus (opens in a new tab); Encyclopaedia Britannica). Independent carrier: Stanford Encyclopedia of Philosophy — Democritus (https://plato.stanford.edu/entries/democritus/ (opens in a new tab); Stanford Encyclopedia of Philosophy).

Low confidence on the exact year.

Confidence is stated on the impact path, not hidden in adjectives.

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

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

Naming Democritus does not delete co-authors, institutions, or later transmitters. The lag from -0460-01-01 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. ActorDemocritus
  2. contributed toFactHandbook chronology places Democritus' birth about 460 BCE; this catalog stores that as received dating, not a civil register
  3. strengthensDriverDigital Learning Access
  4. weakensIndicatorLearning Poverty Rate (low- and middle-income countries)

Cite this page

Factrail. (2026). Handbook chronology places Democritus' birth about 460 BCE; this catalog stores that as received dating, not a civil register. Factrail. https://factrail.ai/facts/dem-conventional-years

https://factrail.ai/facts/dem-conventional-years

Accessed 16 October 2026.

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

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