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John Smith - Virginia / Historic map, Library of Congress

description

Summary

Sixth state.

Relief shown pictorially.

Oriented with north to the right.

Accompanied by 2 exhibit notes and LC jacket note.

Available also through the Library of Congress Web site as a raster image.

In the 17th century, maps took a huge leap forward. Mathematical and astronomical knowledge necessary to make accurate measurements had evolved. English mathematicians had perfected triangulation: navigation and surveying by right-angled triangles. Triangulation allowed navigators to set accurate courses and produced accurate land surveys. Seamen learned to correct their compasses for declination and had determined the existence of annual compass variation. Latitude determination was greatly improved with the John Davis quadrant. The measurement of distance sailed at sea was improved by another English invention, the common log. Longitudinal distance between Europe and Québec was determined by solar and lunar eclipses by the Jesuit Bressani in the 1640s and by Jean Deshayes in 1686. With accurate surveys in Europe, the grid of the modern map began to take shape.

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Tags

virginia maps virginia mineral springs 1624 map of virginia age of discovery age of discovery maps american colonies colonial period america early works to 1800 discovery and exploration geography and map division william hole john smith map ultra high resolution high resolution history ancient history world maps antique maps
date_range

Date

01/01/1624
person

Contributors

Smith, John, 1580-1631.
Hole, William, -1624.
collections

in collections

XVII Century Maps

Birth of modern maps.
create

Source

Library of Congress
link

Link

http://www.loc.gov/
copyright

Copyright info

Public Domain

label_outline Explore 1624, John Smith, Age Of Discovery Maps

Topics

virginia maps virginia mineral springs 1624 map of virginia age of discovery age of discovery maps american colonies colonial period america early works to 1800 discovery and exploration geography and map division william hole john smith map ultra high resolution high resolution history ancient history world maps antique maps