Romans established every major city near a saltworks and for some time, roman troops were paid in salt; Britain lost control of its American and Indian colonies when it lost control of their salt supplies.

罗马人的每一个主要城市都建在盐田附近，在某一时期，罗马军队的薪水就是盐；当英国人失去对当地食盐的控制时，他们也失去了对美洲和印第安殖民地的控制。