Prior to the Industrial Revolution, transportation was accomplished through the use of domesticated animals or by walking. The wagon and horse carried most of the products to market. People also traveled by wagon or carriage. Actually, people and products didn't move very far from home. Most areas were self-sufficient, so people didn't have to bring very much from outside. Therefore the road systems connecting different areas were usually poor. This situation changed as the Industrial Revolution spread throughout Great Britain, Europe, and the United States.