The Library of Congress reports on how its Preservation Research and Testing Division used multispectral imaging to bring out previously illegible place names on a 16th-century portolan chart of the east coast of North America. Initially the PRTD was brought in to confirm that the chart was legit before the Library purchased it (which it did last fall), but the faded iron gall ink in some areas of the map suggested obscured details that further analysis could draw out and place names that could be made legible again. According to the article, this represents the first time the Library has posted an enhanced image of one of their holdings.

On the Library of Congress’s map blog, World’s Revealed, Julie Stoner takes a look at a rather unusual example of a bird’s-eye (or panoramic) city map. “The Geography and Map Division has over 1,700 of these beautiful panoramic maps in the collection, but one item stands out above all the others as one of the crowning achievements of the art, Camille N. Dry’s 1875 atlas, Pictorial St. Louis; The Great Metropolis of the Mississippi Valley. A visually stunning atlas, instead of only one sheet, it was produced on 110 plates, which if trimmed and assembled creates a panorama of the city measuring about 9 by 24 feet.”

For this year’s GIS Day, the Library of Congress is holding a virtual event focusing on the 2020 Census, featuring a keynote by Census Bureau geography chief Deirdre Bishop as well as three technical papers. The program will be (or was, depending on when you read this) streamed on the Library of Congress’s website and on their YouTube channel on Wednesday, 17 November 2021 at 1 p.m. EST, and will be available for later viewing.

Previously: Fire Insurance Maps Online.

This isn’t the first time the magazine has done this: the September-October 2016 issue (2.9 MB) was also almost entirely dedicated to maps. Previously: Library of Congress Magazine’s Map Issue.

Cornell University Library has been home to the P. J. Mode Collection of Persuasive Cartography since 2014, and that collection is very much available online. Today, though, a new exhibition of maps from that collection opens at the Carl A. Kroch Library’s Hirshland Exhibition Gallery. Latitude: Persuasive Cartography runs until 21 February 2020.

Cornell isn’t the only repository of maps intended to persuade or propagandize. The Library of Congress acquired a collection of 180 such maps, focusing on war and propaganda in the first half of the 20th century, in 2016.

Previously: Persuasive Cartography; Another Look at Persuasive Cartography; Persuasive Cartography Collection Expands, P. J. Mode Interviewed.

In a year-in-review post earlier this month, the Library of Congress’s map blog took a look at some of the maps that had been digitized for the first time in 2018. (Here’s the equivalent post for 2017.) For more frequent updates, the Library’s Geography and Map Division provides monthly lists of maps that have been scanned and added to their online collections, but they’re PDF documents and not very readable.

The Library of Congress’s Geographers on Film collection is a video archive of interviews with cartographers and geographers conducted during the 1970s and 1980s. About 300 interviews were apparently conducted; 28 are online so far. Interview subjects include Walter Ristow, Arthur Robinson (in 1972 and 1984) and Waldo Tobler, among others.

The Library of Congress has acquired the Codex Quetzalecatzin, an extremely rare 1593 Mesoamerican indigenous manuscript that depicts, using Nahuatl hieroglyphics and pre-contact illustrative conventions as well as Latin characters, the lands and genealogy of the de Leon family. John Hessler’s blog post describes the codex and helps us understand its significance.

Like many Nahuatl codices and manuscript maps of the period it depicts a local community at an important point in their history. On the one hand, the map is a traditional Aztec cartographic history with its composition and design showing Nahuatl hieroglyphics, and typical illustrations. On the other hand, it also shows churches, some Spanish place names, and other images suggesting a community adapting to Spanish rule.  Maps and manuscripts of this kind would typically chart the community’s territory using hieroglyphic toponyms, with the community’s own place-name lying at or near the center. The present codex shows the de Leon family presiding over a large region of territory that extends from slightly north of  Mexico City, to just south of Puebla. Codices such as these are critical primary source documents, and for scholars looking into history and  ethnography during the earliest periods of contact between Europe and the peoples of the Americas,  they give important clues into how these very different cultures became integrated and adapted to each others presence.

The Codex has been in private hands for more than a century, but now that the Library of Congress has it, they’ve digitized it and made it available online. [Tony Campbell/Carla Hayden]

A Land Beyond the Stars is a major new website dedicated to Martin Waldseemüller’s 1507 world map. Announced last week, it’s a collaboration between the Library of Congress and the Galileo Museum in Florence, Italy; the latter institution is responsible for the multimedia presentation.

[The website] brings the map’s wealth of historical, technical, scientific and geographic data to a broader public. Interactive videos explain the sciences of cartography and astronomy and the state of navigational and geographic knowledge during the time of Waldseemüller. Developed with materials from the Library of Congress and other libraries around the world, the name of the website stems from Waldseemüller’s use of a passage from Roman poet Virgil, which can be found in the upper left corner of the 1507 map.

[ResearchBuzz/WMS]

Later this week, the Library of Congress will host a two-day conference celebrating the 500th anniversary of Martin Waldseemüller’s 1516 map, Carta Marina. Facts or Fictions: Debating the Mysteries of Early Modern Science and Cartography will take place on 6-7 October in the Coolidge Auditorium in the Library’s Thomas Jefferson Building in Washington, D.C. The conference agenda is not limited to Waldseemüller or his 1516 map; notable speakers include Kirsten Seaver, Chet Van Duzer and, with a major lecture, Dava Sobel. Free admission; no tickets or reservations required.

(The 1516 Carta Marina should not be confused with the Waldseemüller map most people mean: it’s his 1507 Universalis Cosmographia that names “America.” Nor should it be confused with Olaus Magnus’ Carta Marina.)

Speaking of the Library of Congress, yesterday it opened a new exhibition both online and at the Library’s North Exhibition Gallery. Mapping a Growing Nation: From Independence to Statehood features the best known copy of Abel Buell’s 1784 New and Correct Map of the United States of North America—“which, among other things, has been recognized as the very first map of the newly independent United States to be compiled, printed, and published in America by an American. Additionally, the 1784 publication is the first map to be copyrighted in the United States, registered under the auspices of the Connecticut State Assembly.” Accompanying Buell’s map are other early maps—often the first maps—of each U.S. state; the maps will rotate on and off physical display for space reasons but will eventually all be featured online. [WMS]

Earlier this month Voice of America had a short, introductory piece on Martin Waldseemüller’s 1507 map of the world. Because it’s the first time the word “America” appears on a map, it’s become known as “America’s birth certificate.” It’s for that reason that the Library of Congress spent $10 million to acquire the last known copy of the map. The story of the map, however, is much more interesting than that: it’s an amalgam of classical knowledge with more recent discoveries, a curious document that tries to bridge two different ways of thinking about the world. [WMS]

Several books about the map have been published. I haven’t yet seen The Naming of America: Martin Waldseemüller’s 1507 World Map and the Cosmographiae Introductio by John W. Hessler (Giles, 2008) or Putting “America” on the Map by Seymour I. Schwartz (Prometheus, 2007), but I have read and reviewed The Fourth Part of the World by Toby Lester (Free Press, 2009), which wraps the map in considerable historical context (buy the book at Amazon or iBooks).

Previously: Digital Preservation and Waldseemüller’s 1507 Map; Review: The Fourth Part of the World.

NPR and the Washington Post report a fascinating story of how a rare atlas was identified in an unlikely fashion: being posted to Reddit. Last month, reference librarian Anders Kvernberg stumbled across an uncatalogued atlas in the vaults of the National Library of Norway. He could make out that it was an Ottoman atlas from 1803, but not much more than that, since he couldn’t read Ottoman Turkish. He did scan and post one of its maps to Reddit, where Redditors went to work translating the text. Then, a couple of weeks later, another Redditor posted an Ottoman map of Africa, which was identified as part of the Cedid Atlas (Cedid Atlas Tercümesi), published in Istanbul in 1803. The Library of Congress has a copy, which it acquired in 1998, digitized, and put online. Kvernberg went and looked—and, he says, “started recognising the scans. Then I realized this was the very same atlas I had held in my hands a few weeks earlier.” The Cedid Atlas was rare: only 50 were printed, and only 14 were known to be held in public institutions. It turns out that the National Library of Norway has the 15th. [via]

Though the effects of the Gulf Stream were known to seafarers for centuries, Benjamin Franklin was the first to name it and chart it. The Library of Congress’s map blog has a post about the maps of the Gulf Stream produced by Franklin with his cousin, Timothy Folger, a ship captain who knew the currents. “Folger and Franklin jointly produced a chart of the Gulf Stream in 1768, first published in London by the English firm Mount and Page. The Geography and Map Division holds one of only three known copies of this first edition (see above), in addition to a copy of the ca. 1785 second edition.”