Skip to content
statementVerified

Journal notes on compass variation are a dated public-navigation method file

The first-voyage journal notes compass variation as a navigation-method file. 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

The first-voyage journal notes compass variation as a navigation-method file. Unique invention over all mariners is not claimed. Christopher Columbus's documented role is: The journal records compass-north versus pole-star. Later abstracts carry it; unique priority over all mariners is not claimed.

Context

Las Casas's abstract is the usual public file. Sharing that limit is required. The setting of Journal notes on compass variation are a dated public-navigation method file is the public file around 1492-09-13. Contribution type is direct. Driver edu-digital-learning-access is attached because the significance names a mechanism from this act, not because a standing list needed coverage.

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

Why it matters

Improving path from Journal notes on compass variation are a dated public-navigation method file on 1492-09-13. The welfare reading on this path is improving.

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.

  • Christopher Columbus

    Person

    Direct responsibility

    responsibility level 0.32 · verified

    The journal records compass-north versus pole-star. Later abstracts carry it; unique priority over all mariners is not claimed.

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.Project Gutenberg — Journal, 12 October as later EnglishProject Gutenberg · High credibility · verified
  2. 2.Britannica — Columbus, Capitulaciones de Santa FeEncyclopaedia Britannica · High credibility · verified
What the sources establish

Official locator: Project Gutenberg — Journal, compass variation as later English at https://www.gutenberg.org/ebooks/18571 (opens in a new tab) (Project Gutenberg). Independent locator: Britannica — Columbus, compass neighbourhood at https://www.britannica.com/biography/Christopher-Columbus (opens in a new tab) (Encyclopaedia Britannica). Official carrier: Project Gutenberg — Journal, compass variation as later English (https://www.gutenberg.org/ebooks/18571 (opens in a new tab); Project Gutenberg). Independent carrier: Britannica — Columbus, compass neighbourhood (https://www.britannica.com/biography/Christopher-Columbus (opens in a new tab); Encyclopaedia Britannica).

Established: a sourced public record of Journal notes on compass variation are a dated public-navigation method file under 1492-09-13 for Christopher Columbus. Established: a sourced public record of Journal notes on compass variation are a dated public-navigation method file under 1492-09-13.

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. Notes are the instrument. Mixed effects of Journal notes on compass variation are a dated public-navigation method file are separate paths.

Shared responsibility is part of Journal notes on compass variation are a dated public-navigation method file. Naming Christopher Columbus does not delete co-authors, institutions, or later transmitters. The lag from 1492-09-13 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. ActorChristopher Columbus
  2. contributed toFactJournal notes on compass variation are a dated public-navigation method file
  3. strengthensDriverDigital Learning Access
  4. weakensIndicatorLearning Poverty Rate (low- and middle-income countries)

Cite this page

Factrail. (2026). Journal notes on compass variation are a dated public-navigation method file. Factrail. https://factrail.ai/facts/col-magnetic-notes

https://factrail.ai/facts/col-magnetic-notes

Accessed 15 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.