From ScienceNews, a pretty cool article on a new interactive map. The map charts the Roman roads throughout the Empire, it
"includes roads, rivers and hundreds of sea routes allows users to
calculate the travel time and costs for traversing the ancient empire.
The project, called ORBIS, is allowing researchers to probe standing
hypotheses and develop new ones concerning the economic, social,
military and political dynamics of an empire that had a profound and
enduring influence on western civilization."
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