The Roman legions (armies) of the governor of Roman Britain, Platorius Nepos, built the wall for the emperor between 122 and 126. The wall was about long. Most of the wall – – was made of stone. To the west of this section – for – the wall was made of turf. The stone part of the wall was thick and about tall. The wall's turf part was thick and about tall. To start with, the wall's east end was at Newcastle upon Tyne (), but later the Romans built more stone wall for to the east, to Wallsend on Tyne. In front of the wall (on the northern side) was a ditch. The ditch was away from the wall. The ditch was at about deep and was normally about wide. The Romans used the wall for at least two hundred years.