Transportation

Land transportation first began with the carrying of goods by people. The ancient civilizations of Central America, Mexico, and Peru transported materials in that fashion over long roads and bridges. Primitive peoples used a sledge made from a forked tree with crosspieces of wood. The Native Americans of the Great Plains made a travois consisting of two poles each fastened at one end to the sides of a dog or a horse, the other end dragging on the ground; the back parts of the two poles were attached by a platform or net, upon which goods were loaded.