15 set 200 ano - 200 d.C. Los romanos construyeron una muralla defensiva alrededor de la ciudad llamada London Wall (3,000 millas de largo, 20 pies de altura, 8 pies de ancho)

Descrição:

The Romans built many major structures in Londinium including temples, bathhouses, a basilica for meetings, and a governor’s palace. Around 200 AD, they built a defensive wall around the city called London Wall. The wall was around three miles long, 20 feet high, and 8 feet wide.