Rome: Rise and Fall of an Empire

Barbarians and technology, maybe they're not such a contradiction after all. It's the bow that nearly brought down Rome, and the suspension system that revolutionized the chariot. Barbarians built the forts that held out invaders, and forged the axe that named a country. See inside the shop of one of the world's finest metal workers as he shapes iron ore into a classic Celtic sword. With 21st Century animation rebuild a 1600 year-old hill fort--and show that protecting a village was as easy as digging a ditch. From Modern Marvels Season 13 ep 8.