Show Mason and Dixons Line Mason anti Dixon line Is a reference refer-ence to a boundary which was established estab-lished In the years intervening from 1763 to 1767 between the colonies of Maryland and Virginia on tho ono side and that of Pennsylvania on the other side by Charles Mason and Jeremiah Dixon who were two English Eng-lish civil engineers So thoroughly was tho allotted task performed by that 1849 these young Englishmen an revision of the survey failed to detect thq slightest error The United also as recently as States government 1901 has caused the Maryland portion boundary luau to be tion of the noted jgalu revised |