Colonial Era Shipping Routes
Using recently digitalised ship logbooks from 1750 to 1850 this map shows the most frequently travelled routes by British, Dutch and Spanish merchant navies.Click image for a larger version
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The maps originally produced by UCL Geography lecturer James Cheshire give a fascinating insight into the state of sea trade in this colonial era.
100 years of shipping video
The same data has also been painstakingly mapped out in this video showing which routes were active at which times.
Video courtesy of Ben Schmidt who provides some interesting analysis in his blog.