Fairly self explanatory, I was just wondering what people called the large wall built by the Romans at the time of its construction and after the wall fell to ruin during the Saxon, Viking and Norman invasions up until the modern era.
The Romans called it "vallum Aelium," or the wall of Hadrian. However, some scholars and writers in Late Antiquity often misattributed the wall to Septimus Servus, which left later scholars in Europe confused towards the actual emperor who commissioned it. As a result, Europeans called "the pictswall" in the middle ages, and "the Roman wall" in the eighteen century. It wasn't until the 20th century that scholars established it was indeed Hadrian who had commissioned the wall, thus the term "Hadrian's Wall" became popularized.
Source: Hingley, Richard. "Idenity and Origin." In Hadrian's Wall: A Life, 16-17. Oxford: Oxford Univeristy Press, 2012.