Roman Lorica Segmentata

Origins

For most of the Republic the legionary wore mail, the lorica hamata, which the Romans probably learned from the Celts. Plate armour of hinged iron strips appears at the turn of the eras, and the earliest firm evidence comes from Kalkriese in Lower Saxony, the site of the Battle of Teutoburg Forest in AD 9, where fittings and a breastplate fragment show the armour already in service with the legions Varus lost. Where the idea came from is debated: gladiatorial arm defences of laminated plates and eastern cavalry armour have both been suggested. What is clear is that the design was mature by the early first century and was issued alongside, not instead of, mail and scale throughout its life. The name 'lorica segmentata' was coined by sixteenth-century antiquarians; the Romans may have called it lorica laminata, but no ancient text confirms it.

Design & Construction

The armour is made of some forty iron plates in four units: two for the upper body, two for the lower. The girth hoops wrap around the torso and close at front and back; shoulder guards of curved lames protect the upper arm and collar; breast and back plates complete the chest. Everything is riveted to internal leather straps that let the plates slide over one another, so the wearer can bend and twist, and the whole is fastened with brass hinges, buckles and tie loops. A complete cuirass weighed around seven to nine kilograms, spread over the shoulders and chest. Archaeologists recognise three main types: the early Kalkriese pattern; the Corbridge type, known from a chest of armour parts buried around AD 120 at Corbridge near Hadrian's Wall and found in 1964; and the simplified Newstead type of the later second and third centuries, with fewer fiddly fittings. The brass fittings were its weak point, and the finds are full of broken hinges and improvised repairs.

Combat Use

The segmentata protected the upper body and shoulders superbly against downward cuts and missiles, which suited the legionary's fighting style: close order behind the curved scutum, throwing the Roman Pilum and then closing with the Roman Gladius, thrusting from behind the shield. Trajan's Column shows the armour on legionaries campaigning in Dacia in AD 101 to 106, contrasting them with auxiliaries in mail — a distinction scholars now suspect was artistic shorthand rather than strict regulation. It was maintenance-heavy and not every legionary wore it, but it served in Britain, on the Rhine and Danube frontiers and in the east for two and a half centuries.

Legacy

The lorica segmentata disappears in the third century AD, when the army returned to mail and scale, easier to make and repair in the provincial workshops of a fragmenting empire; the latest known fragments come from León in Spain. Rediscovered through monuments and then through excavation, it became the uniform of the Roman Legions in film, reenactment and every popular image of Rome. Modern reconstructions, built after H. Russell Robinson's pioneering work on the Corbridge finds, have tested its weight and flexibility in practice. Original fittings are common finds on frontier sites; a complete original cuirass has never been found.