Roman Roads
The Roman Empire stretched across much of Europe, North Africa, and the Middle East. To rule such a large area, Rome needed to move soldiers, messengers, and goods quickly. The Romans solved the problem by building roads, thousands of miles of them.
Roman engineers planned a road carefully. Surveyors chose a route, often a nearly straight one, and workers dug a trench along it. Into the trench they packed layers of material: large stones at the bottom, then smaller stones and gravel, and sand near the top. The surface was paved with flat stones that fit closely together.
The road was built higher in the middle than at the edges, so rain would run off into ditches on both sides. Water is a road's worst enemy, because it softens the ground and cracks the surface. Good drainage helped Roman roads last for centuries.
Soldiers marched along the roads, and so did traders carrying pottery, wine, and grain. Messengers could carry news from one province to another much faster than before. Along the way there were inns and stations where travelers could rest and change horses.
Roads also changed the lands they crossed. Towns grew up beside them, and ideas, languages, and customs spread along them. The saying "all roads lead to Rome" captured the idea that the roads connected the empire to its capital.
Parts of some Roman roads can still be seen today, and some modern roads follow their old paths.