http://science.discovery.com/videos/what-the-ancients-knew-roman-mass-production.html http://science.discovery.com/videos/what-the-ancients-knew-r... "Romans w

http://science.discovery.com/videos/what-the-ancients-knew-roman-mass-production.html http://science.discovery.com/videos/what-the-ancients-knew-r... "Romans were the first to invent mass production. They figured out how to use water wheels to create a factory flour mill."