{
  "$schema": "../schema/atlas.schema.json",
  "kind": "atlas-leads",
  "description": "Secondary works and tzdb comments that pointed to sources. They are not citations: nothing in the atlas rests on them.",
  "leads": [
    {
      "id": "lead-tzdb-europe-france",
      "kind": "tzdb-comment",
      "title": "tzdb 2025c, file europe: comments before the France rules and Zone Europe/Paris",
      "url": "https://data.iana.org/time-zones/releases/tzdata2025c.tar.gz",
      "note": "Pointed to the law of 14 March 1891 in the Journal officiel of 15 March 1891, the law of 9 March 1911 in the Journal officiel of 10 March 1911, Le Petit Journal of 11 March 1911 on the pneumatic clocks and the railway change, and the five-minute lag of railway clocks. All were read at the source before being cited."
    },
    {
      "id": "lead-tzdb-northamerica-us",
      "kind": "tzdb-comment",
      "title": "tzdb 2025c, file northamerica: comments on the 1883 change, New York City Hall time, the Standard Time Act of 1918 and its repeal, and Louisville",
      "url": "https://data.iana.org/time-zones/releases/tzdata2025c.tar.gz",
      "note": "Pointed to the Statutes at Large for the acts of 1918 and 1919 (the PDF links it gives could not be fetched; the Library of Congress page images were read instead), to New York City Hall time being about 3 min 58 s fast of Eastern time, and to the Louisville & Nashville Railroad's trains standing still for 18 minutes at its change of 18 November 1883, which it takes from Bartky and says it cannot match to Louisville's civil time. The secondary works it names (Bartky 1989, Prerau 2005, the Monthly Notices note of 1884) were not consulted."
    }
  ]
}