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Posted by: Meagan Snow
How have national and global populations been mapped over time? This blog post uses collection items from the Geography & Map Division at the Library of Congress to explore changing methods for mapping populations, from census-based thematic maps to modern population raster datasets.
Posted in: Big Data and Visualization, Geographic Information Science
Posted by: Tim St. Onge
Our new interactive map showcases the Climatological Database for the World's Oceans 1750-1850, an exciting digital acquisition of the Library of Congress.
Posted in: Big Data and Visualization, Exploration, Geography and Map Division
Posted by: Carissa Pastuch
In 1899, British geologist Henry G. Lyons (1864–1944) began a systematic reassessment of the cadastral surveys conducted in Egypt under Ottoman Turkish rule. His updated survey was built upon 90 years of work—starting in 1813 when Muʿallim Ghali, a finance minister appointed by Muhammad ʿAli Basha (1769–1849), reorganized the finances of Egypt to optimize taxation. …
Posted in: 20th century cartography, Middle East and North African History, Uncategorized
Posted by: Amelia Raines
This afternoon, please join Geography and Map Division staff for a virtual orientation focused on maps and genealogy! Date: Tuesday, April 11, 2023 Time: 3:00-4:00 pm (Eastern) Location: Zoom Register for this session here! Reference librarians Amelia Raines and Julie Stoner will present an introduction to the Library of Congress Geography and Map collections. This orientation session …
Posted in: Events, Geography and Map Division
Posted by: Amelia Raines
In 1798, James Rennell, an English cartographer primarily known for his maps of British territories in India and South Asia, published A map shewing the progress of discovery & improvement, in the geography of North Africa. This map combined geographical information gathered from sources spanning more than 1.5 millennia, from recent explorers all the way …
Posted in: 18th century cartography, African History, European History, Exploration