Figure 5 - available via license: Creative Commons Zero 1.0
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A visualization of the Civil War maps in the Newspaper Navigator dataset, filtered from 278,094 pages published from 1861 through 1865. Note that certain maps appear multiple times, indicating that they were reprinted. Only a small fraction of included images are false positives, suggesting the high performance of the visual content recognition model in the pipeline. This collection of Civil War maps is available as a pre-packaged dataset.
Source publication
Chronicling America is a product of the National Digital Newspaper Program, a partnership between the Library of Congress and the National Endowment for the Humanities to digitize historic newspapers. Over 16 million pages of historic American newspapers have been digitized for Chronicling America to date, complete with high-resolution images and m...
Contexts in source publication
Context 1
... demonstrate questions that we can begin to answer with the Newspaper Navigator dataset, we have included Figure 5, a visualization showing maps of the Civil War identified by searching the visual content for all 278,094 pages published between 1861 and 1865 in the dataset. 12 From this collection alone, researchers can study Civil War battles, the history of cartography, differences in print trends for northern and southern newspapers, and map reproduction patterns ("virality"). ...
Context 2
... One such example is the collection of Civil War maps shown in Figure 5. We will continue to add derivative datasets as Newspaper Navigator evolves. ...
Context 3
... the results in Ta- ble 4 to the results on the validation data in 2, we observe a moderate dropoff in performance for pages published between 1875 and 1900, as well as a more major dropoff in performance for pages published between 1850 and 1875. However, the extracted visual content from the pre-1875 pages in the Newspaper Navigator dataset is still of sufficient quality to enable novel analysis, as evidenced by the extracted collection of Civil War maps shown in Figure 5. ...
