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Before the French Delisle family published maps of North America, California was shown as an island, the Mississippi River seemed to enter the Gulf of Mexico 500 miles too far west, and the North American interior was little known and confused. As the result of mostly French exploration in the continent’s mid-section around 1700, soon, many geographical secrets would be revealed, and myths would be debunked. This 40-minute PowerPoint presentation provides the background and demonstrates how French father and son, Claude and Guillaume Delisle, produced superb maps that revolutionized understanding and were copied for decades.

Wes Brown has been a collector and student of old maps for over 40 years. He has published many papers and given scores of talks about the history of cartography. He serves on the boards of the Rocky Mountain Map Society, the Society for the History of Discoveries, and the International Map Collectors Society.

This Lecture Will Take Place Friday, December 11th at 6:00 pm (CET – Paris) or 12:00 pm (EST – New York).