The Romans cannot take credit for the invention of roads, however, they can take credit for having the most complex roads in western civilization. The Romans would make their roads out of granite, hardened volcanic lava, and dirt. The roads the Romans built spread out thousands and thousands of miles throughout the empire. Since the empire was so large, roads made for communicating throughout the empire helped maintain the empire and allowed for expansion. Roman roads were also used for trading of goods just like many of civilizations before