A 21st Century Barbary War

When Thomas Jefferson sent a small naval squadron to the Mediterranean in 1801, he intended to intimidate the Barbary regencies into backing down from their claims of tribute in exchange for commercial freedom in the Mediterranean. Negotiations with the Barbary states hadn’t worked over the previous 15 years of American attempts, and the newly built navy was meant to show the world that America would take its place in the world economy by force. Algiers was responsible for the capture of American ships that had stultified American commerce in the Mediterranean, and its fleet of corsairs was seen as the biggest threat. The Americans had negotiated many times with the dey, but he often changed the terms of the negotiations on a whim. In 1789, Richard O’Brien, then a captive…
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Another Look at Our Diplomatic Graph

Digital Humanities, Naval History
I wrote yesterday about my network graph about U.S.-Barbary diplomatic relations. The graph I showed was color-coded by nationality. That code was hand-inputted by me, no computation or algorithm necessary. A perhaps more interesting, and enigmatic, color-coding is the result of running a modularity algorithm in Gephi. This algorithm creates sub-communities from the large network graph. I will not lie: I do not understand the math behind the result. But the communities created by the algorithm are quite interesting. I find a few things interesting about these communities: James Leander Cathcart and Hasan, dey of Algiers, are in two different communities. This is interesting because Cathcart is probably the person with the most access to Hasan in the entire graph. He was an American captive who worked his way up…
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