00:00What could make Rome's famous army change its own armor?
00:04In 101 AD, Emperor Trajan marched into Dacia, a kingdom in today's Romania.
00:10There, Dacian warriors carried the falks, a long pole with a blade curved like a sickle.
00:17Roman soldiers had never faced anything like it, and their gear struggled to cope.
00:22So the army upgraded, iron bands across helmets, and segmented armor sleeves for the arms.
00:28The answer, one curved blade forced Rome to adapt its armor, a rare change in Roman military history.
