From St. Malo to Rennes by Messenger. 10 leag[ues][1]
[1] He then proceeded by “messenger” or by the postal coach to Rennes. Distance was commonly measured in “leagues.”
On land, the league was most commonly defined as three miles (about 4.8 km), although the length of a “mile” could vary from place to place and at different times; a league could also be defined as the distance a person could walk in one hour.
