Impdimenta: This was the ancient ruc sack. A soldier carried everything he and the cohort would need on a march. In addition to the equipment carried individually, every eight men had the use of a mule to carry a tent, a rotary quern for milling grain, some of the heavier tools and I suspect anything else the men could secretly offload upon it without causing it’s collapse.
Valentinian I was Roman emperor from 364 to 375. During his reign, Valentinian fought successfully against the Alamanni, Quadi, and Sarmatians. His brilliant general Count Theodosius defeated a revolt in Africa and the Great Conspiracy, a coordinated assault on Roman Britain by Picts, Scots, and Saxons. Due to the successful nature of his reign and almost immediate decline of the empire after his death, he is often considered the "last great western emperor".
Beam and rafter fittings. Interior detail of the roof of a straw-thatched Hallstatt blockhouse from Roggenbrunn, Austria. Reconstruction. Early Iron Age (8th-4th BCE) Museum fuer Vorgeschichte, Asparn/Zaya, Austria