Editing Calleva Atrebatum (section)

=== Defence ===
Built in two phases, the defence system of Calleva Atrebatum is evident in the remains of the North Gate. Construction of the wall surrounding the area first began around 200 AD. Parts of this rampart still remain in stone and tile remnants. In 270 AD, the defences were strengthened with an even larger stone wall. Defences were most probably strengthened due to the increasing number of Saxon raids in the area. The defence systems worked to protect from local uprisings, pillaging, and invaders from abroad. They also allowed for traffic to be monitored both in and out of the city.<ref>{{cite web |last1=Johnson |first1=Ben |title=Silchester Roman Town (Calleva Atrebatum) |url=https://www.historic-uk.com/HistoryMagazine/DestinationsUK/Calleva-Atrebatum-Silchester-Roman-Town/ |website=Historic UK |access-date=4 December 2020}}</ref>