What is "segedunum"

Segedunum was a Roman fort at modern-day Wallsend, Tyne and Wear, England, UK. The fort lay at the eastern end of Hadrian's Wall (in Wallsend) near the banks of the River Tyne, forming the easternmost portion of the wall. It was in use as a garrison for approximately 300 years, almost up to 400AD.

Today, Segedunum is the most thoroughly excavated fort along Hadrian's Wall, and is operated as Segedunum Roman Fort, Baths and Museum.