Tiberius and Caius Gracchus

Plutarch

Plutarch. Plutarch's Lives, Vol. X. Perrin, Bernadotte, translator. Cambridge, MA: Harvard University Press; London: William Heinemann Ltd., 1921.

But he busied himself most earnestly with the construction of roads, laying stress upon utility, as well as upon that which conduced to grace and beauty. For his roads were carried straight through the country without deviation, and had pavements of quarried stone, and substructures of tight-rammed masses of sand. Depressions were filled up, all intersecting torrents or ravines were bridged over, and both sides of the roads were of equal and corresponding height, so that the work had everywhere an even and beautiful appearance.

In addition to all this, he measured off every road by miles (the Roman mile falls a little short of eight furlongs) and planted stone pillars in the ground to mark the distances. Other stones, too, he placed at smaller intervals from one another on both sides of the road, in order that equestrians might be able to mount their horses from them and have no need of assistance.