Some Methods for Indicating Cartographic Uncertainty, Fifteenth through Eighteenth Centuries

We have a strong tendency to trust maps as accurate depictions of the world, and most early modern cartographers are content to enjoy that prima facie trust without raising questions about the trustworthiness of their sources. In this article I will examine several methods that cartographers used f...

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Main Author: Chet Van Duzer
Format: Article
Language:English
Published: openjournals.nl 2024-10-01
Series:Journal for the History of Knowledge
Subjects:
Online Access:https://journalhistoryknowledge.org/article/view/13795
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author Chet Van Duzer
author_facet Chet Van Duzer
author_sort Chet Van Duzer
collection DOAJ
description We have a strong tendency to trust maps as accurate depictions of the world, and most early modern cartographers are content to enjoy that prima facie trust without raising questions about the trustworthiness of their sources. In this article I will examine several methods that cartographers used from the fifteenth to the eighteenth centuries of departing from this convention, and indicating to their viewers in a forthright manner which parts of their map they were certain about, and which they were uncertain about. Some of these methods include listing sites about whose location the cartographer is uncertain, using a different graphic style to depict unknown coastlines, using signs to distinguish between certain and uncertain regions, and surrendering to uncertainty and reprinting varying maps of the same region together. Determining what earlier scholars did not know, and how they dealt with that lack of knowledge, is an essential step in producing the history of knowledge.
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spelling doaj-art-cfc9ccf8be4e4f1fbb4ca158f016ddaa2025-08-20T02:11:36Zengopenjournals.nlJournal for the History of Knowledge2632-282X2024-10-0110.55283/jhk.13795Some Methods for Indicating Cartographic Uncertainty, Fifteenth through Eighteenth CenturiesChet Van Duzer0Lazarus Project, University of Rochester We have a strong tendency to trust maps as accurate depictions of the world, and most early modern cartographers are content to enjoy that prima facie trust without raising questions about the trustworthiness of their sources. In this article I will examine several methods that cartographers used from the fifteenth to the eighteenth centuries of departing from this convention, and indicating to their viewers in a forthright manner which parts of their map they were certain about, and which they were uncertain about. Some of these methods include listing sites about whose location the cartographer is uncertain, using a different graphic style to depict unknown coastlines, using signs to distinguish between certain and uncertain regions, and surrendering to uncertainty and reprinting varying maps of the same region together. Determining what earlier scholars did not know, and how they dealt with that lack of knowledge, is an essential step in producing the history of knowledge. https://journalhistoryknowledge.org/article/view/13795history of cartographymapsuncertaintyAbraham OrteliusDidier Robert de VaugondyAlexander Dalrymple
spellingShingle Chet Van Duzer
Some Methods for Indicating Cartographic Uncertainty, Fifteenth through Eighteenth Centuries
Journal for the History of Knowledge
history of cartography
maps
uncertainty
Abraham Ortelius
Didier Robert de Vaugondy
Alexander Dalrymple
title Some Methods for Indicating Cartographic Uncertainty, Fifteenth through Eighteenth Centuries
title_full Some Methods for Indicating Cartographic Uncertainty, Fifteenth through Eighteenth Centuries
title_fullStr Some Methods for Indicating Cartographic Uncertainty, Fifteenth through Eighteenth Centuries
title_full_unstemmed Some Methods for Indicating Cartographic Uncertainty, Fifteenth through Eighteenth Centuries
title_short Some Methods for Indicating Cartographic Uncertainty, Fifteenth through Eighteenth Centuries
title_sort some methods for indicating cartographic uncertainty fifteenth through eighteenth centuries
topic history of cartography
maps
uncertainty
Abraham Ortelius
Didier Robert de Vaugondy
Alexander Dalrymple
url https://journalhistoryknowledge.org/article/view/13795
work_keys_str_mv AT chetvanduzer somemethodsforindicatingcartographicuncertaintyfifteenththrougheighteenthcenturies