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This chart predates the standardization of the measurement of longitude from the Greenwich Meridian, located near London. During the 18th century, map makers could choose one of several points from which to measure longitude. In fact, this chart provides references to five meridians: Paris, London (Greenwich), Ferro (western most of the Canary Islands), Tenerife (largest of The Canary Islands), and Cape Lizard (a southwestern peninsula of England). Prepared in the portolan-style, this chart contrasts nicely with modern navigational charts of the same region. They both have the same function -- to safely guide sailors through complicated and sometimes treacherous coastal waters.

Page data

Page
1
Source index
0
Type
photo
Media ID
2f75d6d0947b4bb5
Size
unknown

Document data

ID
js956m421
Core
obj
Type
map
DTO data
{
    "id": "js956m421",
    "sourceUrl": "https://www.digitalcommonwealth.org/search/commonwealth:js956m421",
    "contentType": "map",
    "stage": "normalized",
    "title": "Carte réduite des costes occidentale d'Afrique",
    "description": "This chart predates the standardization of the measurement of longitude from the Greenwich Meridian, located near London. During the 18th century, map makers could choose one of several points from which to measure longitude. In fact, this chart provides references to five meridians: Paris, London (Greenwich), Ferro (western most of the Canary Islands), Tenerife (largest of The Canary Islands), and Cape Lizard (a southwestern peninsula of England). Prepared in the portolan-style, this chart contrasts nicely with modern navigational charts of the same region. They both have the same function -- to safely guide sailors through complicated and sometimes treacherous coastal waters.",
    "date": "[\"[1765]\"]",
    "year": 1765,
    "citationUrl": "https://www.digitalcommonwealth.org/search/commonwealth:js956m421",
    "rights": "No known copyright restrictions.",
    "rightsUri": "No known restrictions on use.",
    "reuseAllowed": "no restrictions",
    "language": "French",
    "identifierLocal": "06_01_000071",
    "creators": [
        "Bellin, Jacques Nicolas, 1703-1772"
    ],
    "institution": "Boston Public Library",
    "collections": [
        "Norman B. Leventhal Map & Education Center Collection",
        "Maritime Charts and Atlases"
    ],
    "subjects": [
        "Nautical charts--Africa, West--Early works to 1800",
        "Africa, West--Maps--Early works to 1800"
    ],
    "subjectsGeographic": [
        "Africa",
        "West Africa"
    ],
    "genreBasic": [
        "Maps"
    ],
    "typeOfResource": [
        "Cartographic"
    ],
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    "pageCount": 1,
    "source": "import",
    "pubPlace": "Paris",
    "publisher": "[s.n.]"
}

Context sent to Scholar

Document identity
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    "localId": "js956m421",
    "label": "Carte réduite des costes occidentale d'Afrique",
    "core": "obj",
    "dtoType": "map",
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Document source metadata
{
    "id": "js956m421",
    "sourceUrl": "https://www.digitalcommonwealth.org/search/commonwealth:js956m421",
    "contentType": "map",
    "stage": "normalized",
    "title": "Carte réduite des costes occidentale d'Afrique",
    "description": "This chart predates the standardization of the measurement of longitude from the Greenwich Meridian, located near London. During the 18th century, map makers could choose one of several points from which to measure longitude. In fact, this chart provides references to five meridians: Paris, London (Greenwich), Ferro (western most of the Canary Islands), Tenerife (largest of The Canary Islands), and Cape Lizard (a southwestern peninsula of England). Prepared in the portolan-style, this chart contrasts nicely with modern navigational charts of the same region. They both have the same function -- to safely guide sailors through complicated and sometimes treacherous coastal waters.",
    "date": "[\"[1765]\"]",
    "year": 1765,
    "citationUrl": "https://www.digitalcommonwealth.org/search/commonwealth:js956m421",
    "rights": "No known copyright restrictions.",
    "rightsUri": "No known restrictions on use.",
    "reuseAllowed": "no restrictions",
    "language": "French",
    "identifierLocal": "06_01_000071",
    "creators": [
        "Bellin, Jacques Nicolas, 1703-1772"
    ],
    "institution": "Boston Public Library",
    "collections": [
        "Norman B. Leventhal Map & Education Center Collection",
        "Maritime Charts and Atlases"
    ],
    "subjects": [
        "Nautical charts--Africa, West--Early works to 1800",
        "Africa, West--Maps--Early works to 1800"
    ],
    "subjectsGeographic": [
        "Africa",
        "West Africa"
    ],
    "genreBasic": [
        "Maps"
    ],
    "typeOfResource": [
        "Cartographic"
    ],
    "iiifBase": "https://iiif.digitalcommonwealth.org/iiif/2/commonwealth%3Ajs956m439",
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    "largeImageUrl": "https://iiif.digitalcommonwealth.org/iiif/2/commonwealth%3Ajs956m439/full/max/0/default.jpg",
    "pageCount": 1,
    "source": "import",
    "pubPlace": "Paris",
    "publisher": "[s.n.]"
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Document source extras
{
    "url": "https://ark.digitalcommonwealth.org/ark:/50959/js956m421",
    "institutionArkId": "sf268508b",
    "collectionArkId": "41688024w",
    "schema:latitude": 14.533,
    "schema:longitude": -2.316,
    "extent": "1 map ; 92 x 56 cm.",
    "notes": [
        "First published in 1758.",
        "Relief shown pictorially.",
        "Depths shown by soundings.",
        "Exhibited in “Faces and Places,” at the Boston Public Library, Boston, MA, October 2003 - September 2004. MB (BRL)"
    ],
    "hasTranscription": false,
    "dcId": "js956m421",
    "type": "map"
}
Page context
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