File:Chart of the Atlantic Ocean, with the British, French and Spanish settlements in North America and the West Indies. RMG F0194.tiff
Original file (6,405 × 5,480 pixels, file size: 100.42 MB, MIME type: image/tiff)
Captions
Captions
Summary
[edit]| Author |
Thomas Jefferys |
| Description |
English: Chart of the Atlantic Ocean, with the British, French & Spanish settlements in North America and the West Indies. Single sheet. Sheet 4 from a set of 6 comprising: A chart of North and South America, including the Atlantic and Pacific Oceans, with the nearest coasts of Europe, Africa and Asia. Engraving coloured in outline. Scale: [circa 1:15,000,000]. Mercator projection, prime meridian through Ferro, with longitude from London added. Graduated for latitude and longitude. Outline colour denotes the discoveries and settlements of colonising nations. The chart contains tables of geographical positions. In 1753, when Thomas Jefferys published this chart, there was no reliable method for finding longitude at sea and the Board of Longitude was offering a reward of £20,000 for solving the problem. The lunar distance method and the timekeeper method were the leading contenders. At the same time, improvements in astronomy and observational instruments meant that measurements of co-ordinates on land were becoming more reliable. Jefferys attempted to make his charts as accurate as possible and so published the co-ordinates of places recorded by named observers to make it clear if there was any disagreement about them, as with Jamaica, for example. When William Harrison returned from a voyage to Jamaica in 1763 and reported that his father John Harrison's timekeeper H4 had performed well enough to win the prize, the Board of Longitude objected that the longitude of Port Royal was not fully known. |
| Date | 1753 |
| Dimensions | Printed area 48 x 61.5cm, on sheet 60.5 x 70.5cm. |
| Source/Photographer | http://collections.rmg.co.uk/collections/objects/540348 |
| Permission (Reusing this file) |
The original artefact or artwork has been assessed as public domain by age, and faithful reproductions of the two dimensional work are also public domain. No permission is required for reuse for any purpose. The text of this image record has been derived from the Royal Museums Greenwich catalogue and image metadata. Individual data and facts such as date, author and title are not copyrightable, but reuse of longer descriptive text from the catalogue may not be considered fair use. Reuse of the text must be attributed to the "National Maritime Museum, Greenwich, London" and a Creative Commons CC-BY-NC-SA-3.0 license may apply if not rewritten. Refer to Royal Museums Greenwich copyright. |
| Identifier | Acquisition Number: JEF005 id number: G201:7/1D |
| Collection | Charts and maps |
Licensing
[edit]|
This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason:
The official position taken by the Wikimedia Foundation is that "faithful reproductions of two-dimensional public domain works of art are public domain".
This photographic reproduction is therefore also considered to be in the public domain in the United States. In other jurisdictions, re-use of this content may be restricted; see Reuse of PD-Art photographs for details. | ||||
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:01, 6 September 2017 |  | 6,405 × 5,480 (100.42 MB) | Fæ (talk | contribs) | Royal Museums Greenwich Charts and maps, http://collections.rmg.co.uk/collections/objects/540348 #1013 |
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