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statementVerified

The Geography presents a public coordinate grid and map-making method

The Geography presents a public method for a coordinate gazetteer and drawn maps. 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 Geography presents a public method for a coordinate gazetteer and drawn maps. Ptolemy’s documented role is: He set out a gazetteer with latitude/longitude and instructions for drawing maps. Later manuscripts are carriers; the longitude-stretch error remains a neighbouring cost row. Method-and-grid is not the error heading. Later editors, printers, and excavators remain named where they appear. Ptolemy's documented role is: He set out a gazetteer with latitude/longitude and instructions for drawing maps.

Context

A library of travellers’ reports, unnamed copyists, and later Renaissance printers already sit in the file. A grid is not unique authorship of every later atlas. Later 1477 print is not 151 type. Named others on the file: Unnamed copyists, later map-printers, and neighbouring travellers as sources share the treatise. The public setting is the file around 0151-01-01. The instrument stays The Geography presents a public coordinate grid and map-making method. The setting of The Geography presents a public coordinate grid and map-making method is the public file around 0151-01-01. Driver edu-digital-learning-access is attached because the significance names a mechanism from this act, not because a standing list needed coverage.

Shared responsibility is part of The Geography presents a public coordinate grid and map-making method. Naming Ptolemy does not delete co-authors, institutions, or later transmitters. The lag from 0151-01-01 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.

Why it matters

Complex later carrier. Welfare reading improving. The attached mechanism is A dated coordinate method put public map-making into a teaching file, distinct from the Geography’s systematic longitude overstretch as a worsening row. 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.

Who was responsible

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

  • Ptolemy

    Person

    Direct responsibility

    responsibility level 0.44 · verified

    He set out a gazetteer with latitude/longitude and instructions for drawing maps. Later manuscripts are carriers; the longitude-stretch error remains a neighbouring cost row.

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 — Ptolemy’s GeographyEncyclopaedia Britannica · High credibility · verified
  2. 2.Britannica — Ptolemy, Planetary HypothesesEncyclopaedia Britannica · High credibility · verified
What the sources establish

Official: Britannica — Ptolemy’s Geography (https://www.britannica.com/topic/Guide-to-Geography (opens in a new tab); Encyclopaedia Britannica). Independent: Britannica — Ptolemy, Geography as gazetteer (https://www.britannica.com/biography/Ptolemy (opens in a new tab); Encyclopaedia Britannica). 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 — Ptolemy’s Geography (https://www.britannica.com/topic/Guide-to-Geography (opens in a new tab); Encyclopaedia Britannica). Independent carrier: Britannica — Ptolemy, Geography as gazetteer (https://www.britannica.com/biography/Ptolemy (opens in a new tab); Encyclopaedia Britannica).

Established: Geography as a public grid-and-method. Not established: that the longitude-stretch row is cancelled. Established: a sourced public record of The Geography presents a public coordinate grid and map-making method under 0151-01-01.

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

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

Confidence is stated on the impact path, not hidden in adjectives. Mixed effects of The Geography presents a public coordinate grid and map-making method are separate paths.

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

Causal path

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

  1. ActorPtolemy
  2. contributed toFactThe Geography presents a public coordinate grid and map-making method
  3. strengthensDriverDigital Learning Access
  4. weakensIndicatorLearning Poverty Rate (low- and middle-income countries)

Cite this page

Factrail. (2026). The Geography presents a public coordinate grid and map-making method. Factrail. https://factrail.ai/facts/pto-geography-grid

https://factrail.ai/facts/pto-geography-grid

Accessed 16 October 2026.

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

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