In many countries, Kilometre Zero (also written km 0) or similar terms in other languages (also known as Zero mile marker, control stations or control points) is a particular location (often in the nation's capital city), from which distances are traditionally measured. They were markers where drivers could set their odometers to follow directions in early guide books.
A similar notion also exists for individual roads (that is, all locations on the road have a number, depending on their distance from that location), and for individual cities (often the city's central post office is used for this).
The most famous such marker of which any part survives from ancient times is the Milliarium Aureum ("Golden Milestone") of the Roman Empire, believed to be the literal origin for the maxim that "all roads lead to Rome".
Famous quotes containing the words mile and/or marker:
“We got our new rifled muskets this morning. They are mostly old muskets, many of them used, altered from flint-lock to percussion ... but the power of the gun was fully as great as represented. The ball at one-fourth mile passed through the largest rails; at one-half mile almost the same.... I think it an excellent arm.”
—Rutherford Birchard Hayes (1822–1893)
“Personal change, growth, development, identity formation—these tasks that once were thought to belong to childhood and adolescence alone now are recognized as part of adult life as well. Gone is the belief that adulthood is, or ought to be, a time of internal peace and comfort, that growing pains belong only to the young; gone the belief that these are marker events—a job, a mate, a child—through which we will pass into a life of relative ease.”
—Lillian Breslow Rubin (20th century)