Ledger
Source Library
Every factual statement in Evidence Pros must connect to a source record. This is that ledger. Filter by topic, source type, claim, date, or verification status. Nothing here is a substitute for the original document — follow the links.
12 of 12 sources shown.
New Standard Map of the World (Gleason, 1892) — Boston Public Library scan
ArchivalVerifiedAlexander Gleason; digitized by Boston Public Library · published 1892 · retrieved 2025-11
Master scan of the 1892 Gleason map held by Digital Commonwealth. The image is the authoritative source; we never redraw it.
Open source →archival: ark:/50959/7h149v85zCited by: Gleason's 1892 map is patented as a north-polar azimuthal-equidistant projection · The Gleason map's coastline geometry matches an azimuthal-equidistant projection of a spherical earth
US Patent 497,917 — Map of the World (Alexander Gleason)
GovernmentVerifiedUS Patent and Trademark Office · published 1893-05-23 · retrieved 2025-11
Patent specification describing Gleason's projection as an azimuthal-equidistant construction centered at the north pole.
Open source →patent: US497917Cited by: Gleason's 1892 map is patented as a north-polar azimuthal-equidistant projection · The Gleason map's coastline geometry matches an azimuthal-equidistant projection of a spherical earth
Natural Earth 1:110m Physical Coastline
ReferenceVerifiedNatural Earth (public domain) · retrieved 2025-11
Public-domain coastline dataset used for every projection comparison in the Map Evidence Lab.
Cited by: The Gleason map's coastline geometry matches an azimuthal-equidistant projection of a spherical earth · continent-comparison
d3-geo / d3-geo-projection projection implementations
ReferenceVerifiedMike Bostock and contributors · retrieved 2025-11
Reference implementations for equirectangular, Mercator, Robinson, Equal Earth, orthographic, and azimuthal-equidistant projections.
OurAirports — Sydney Kingsford Smith (YSSY)
ReferenceVerifiedOurAirports (open data) · retrieved 2025-11
Endpoint coordinates for SYD/YSSY: −33.9461°, 151.1772°.
Cited by: Southern-hemisphere long-haul flight times distinguish between competing world models
OurAirports — Santiago Arturo Merino Benítez (SCEL)
ReferenceVerifiedOurAirports (open data) · retrieved 2025-11
Endpoint coordinates for SCL/SCEL: −33.393°, −70.7858°.
Cited by: Southern-hemisphere long-haul flight times distinguish between competing world models
OurAirports — O. R. Tambo International (FAOR)
ReferenceVerifiedOurAirports (open data) · retrieved 2025-11
Endpoint coordinates for JNB/FAOR: −26.1367°, 28.2411°.
Cited by: Southern-hemisphere long-haul flight times distinguish between competing world models
OurAirports — Perth Airport (YPPH)
ReferenceVerifiedOurAirports (open data) · retrieved 2025-11
Endpoint coordinates for PER/YPPH: −31.9403°, 115.9669°.
Cited by: Southern-hemisphere long-haul flight times distinguish between competing world models
OurAirports — Auckland Airport (NZAA)
ReferenceVerifiedOurAirports (open data) · retrieved 2025-11
Endpoint coordinates for AKL/NZAA: −37.0081°, 174.7917°.
Cited by: Southern-hemisphere long-haul flight times distinguish between competing world models
OurAirports — Ministro Pistarini Ezeiza (SAEZ)
ReferenceVerifiedOurAirports (open data) · retrieved 2025-11
Endpoint coordinates for EZE/SAEZ: −34.8222°, −58.5358°.
Cited by: Southern-hemisphere long-haul flight times distinguish between competing world models
United Nations emblem — description and specification
GovernmentVerifiedUnited Nations / WIPO 6ter registry · published 1946 · retrieved 2025-11
The emblem depicts a north-polar azimuthal-equidistant projection framed by olive branches. Design use, not a cosmological claim.
Cited by: The United Nations emblem depicts a north-polar azimuthal-equidistant projection
WGS 84 reference ellipsoid — NGA/DoD Technical Report TR8350.2
GovernmentVerifiedUS National Geospatial-Intelligence Agency · published 2014 · retrieved 2025-11
Defines the reference ellipsoid used for GPS. Mean-sphere R = 6371.0088 km is a derived spherical approximation for great-circle work.
Cited by: Southern-hemisphere long-haul flight times distinguish between competing world models · The Gleason map's coastline geometry matches an azimuthal-equidistant projection of a spherical earth