Getting From Here To There

This is the first in a series of maps showing the change in travel times across the U.S. from 1800 to 1930.  The rate of travel in 1800 isn't much faster than it was in 500 BC, then in one century it changes dramatically.  In some parts of the world porgress was actually reveresed.  In 200 AD travel from London to York in Britain on the Roman road network was faster than the same journey in 1700.