The Centurion (Centurio) Commanding a centuria of roughly 80 men, the centurion was the tactical backbone of the Roman army. Distinguished on the battlefield by a transverse crest ( crista transversa ) mounted sideways on his helmet for easy visibility, he wore his sword ( gladius ) on the left hip rather than the right. He carried a vitis —a sturdy vine staff used both as a badge of rank and to administer swift corporal punishment. Unlike common soldiers, centurions wore metal greaves protecting their shins and often wore their chest decorations ( phalerae ) mounted on a leather harness over their armor during parades and formal inspections. The Legionnaires (Legionarii) The heavy infantrymen who formed the core of Rome's military might were Roman citizens bound by strict discipline and rigorous training. Armor & Clothing: Dressed in a wool tunic beneath plate armor ( lor...