# The Geography presents a public coordinate grid and map-making method Date: 151 ## The fact The Geography presents a public method for a coordinate gazetteer and drawn maps. The dated method-heading is not the longitude-stretch cost row of the same book and not the Almagest. [Ptolemy](/people/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. Do not twin this with pto-geography-longitude-stretch. 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. Later manuscripts are carriers; the longitude-stretch error remains a neighbouring cost row. ## 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. Unnamed clerks, soldiers, printers, or later editors may appear without becoming this instrument. 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. Shared offices, unnamed crews, printers, or later editors may appear without becoming this instrument. Driver edu-[digital-learning-access](/drivers/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. ## Evidence and sources Britannica independently allows a Geography-as-method heading distinct from the longitude-error heading. Official: Britannica — Ptolemy’s Geography (https://www.britannica.com/topic/Guide-to-Geography; Encyclopaedia Britannica). Independent: Britannica — Ptolemy, Geography as gazetteer (https://www.britannica.com/biography/Ptolemy; 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; Encyclopaedia Britannica). Independent carrier: Britannica — Ptolemy, Geography as gazetteer (https://www.britannica.com/biography/Ptolemy; Encyclopaedia Britannica). Official or archival record: Britannica — Ptolemy’s Geography (https://www.britannica.com/topic/Guide-to-Geography; Encyclopaedia Britannica). ## Significance Improving education-access path: a public coordinate map-method. 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. ## What is established and what is not 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. 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. Do not twin this with pto-geography-longitude-stretch. Method-and-grid is not the error heading. Mixed effects of The Geography presents a public coordinate grid and map-making method are separate paths. The welfare reading used in this dossier is improving. That reading is an impact-path choice, not a property stored on the Fact itself. ## People - Ptolemy: https://factrail.ai/people/ptolemy ## Drivers - Digital Learning Access: https://factrail.ai/drivers/edu-digital-learning-access ## Sources - https://www.britannica.com/topic/Guide-to-Geography - https://www.britannica.com/biography/Ptolemy ## Methodology https://factrail.ai/methodology Canonical: https://factrail.ai/facts/pto-geography-grid