About: Sanborn maps

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Sanborn maps are detailed maps of U.S. cities and towns in the 19th and 20th centuries. Originally published by The Sanborn Map Company (Sanborn), the maps were created to allow fire insurance companies to assess their total liability in urbanized areas of the United States. Since they contain detailed information about properties and individual buildings in approximately 12,000 U.S. cities and towns, Sanborn maps are valuable for documenting changes in the built environment of American cities over many decades.

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  • Sanborn maps are detailed maps of U.S. cities and towns in the 19th and 20th centuries. Originally published by The Sanborn Map Company (Sanborn), the maps were created to allow fire insurance companies to assess their total liability in urbanized areas of the United States. Since they contain detailed information about properties and individual buildings in approximately 12,000 U.S. cities and towns, Sanborn maps are valuable for documenting changes in the built environment of American cities over many decades. Sanborn held a monopoly over fire insurance maps for the majority of the 20th century, but the business declined as US insurance companies stopped using maps for underwriting in the 1960s. The last Sanborn fire maps were published on microfilm in 1977, but old Sanborn maps remain useful for historical research into urban geography. The license for the maps was acquired by land data company Environmental Data Resources (EDR), and EDR was acquired in 2019 by real estate services company LightBox. (en)
  • Les Sanborn maps étaient un ensemble de cartes des villes et villages des États-Unis pendant les XIXè et XXè siècles. Elles étaient publiés par The Sanborn Map Company (« La Société des Cartes Sanborn »), et ont été créés pour les Assurances habitation pour évaluer leur responsabilité totale dans les zones urbanisées des États-Unis. Sanborn a détenu le monopole des cartes d'assurance incendie pendant la majeure partie du XXe siècle, mais l'activité a décliné lorsque les compagnies d'assurance américaines ont cessé d'utiliser les cartes pour l’évaluation des risques dans les années 1960. Les dernières cartes publiées par Sanborn l'ont été sur microfilms en 1977, mais les anciennes cartes restent utiles pour la recherche historique en géographie urbaine. (fr)
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  • Available (en)
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  • Sanborn map of Boston from 1867 (en)
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  • LightBox (en)
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  • The Sanborn Map Company (en)
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  • Sanborn maps (en)
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  • Les Sanborn maps étaient un ensemble de cartes des villes et villages des États-Unis pendant les XIXè et XXè siècles. Elles étaient publiés par The Sanborn Map Company (« La Société des Cartes Sanborn »), et ont été créés pour les Assurances habitation pour évaluer leur responsabilité totale dans les zones urbanisées des États-Unis. (fr)
  • Sanborn maps are detailed maps of U.S. cities and towns in the 19th and 20th centuries. Originally published by The Sanborn Map Company (Sanborn), the maps were created to allow fire insurance companies to assess their total liability in urbanized areas of the United States. Since they contain detailed information about properties and individual buildings in approximately 12,000 U.S. cities and towns, Sanborn maps are valuable for documenting changes in the built environment of American cities over many decades. (en)
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  • Sanborn maps (fr)
  • Sanborn maps (en)
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