UNDER the title of "Oppidum," the stronghold of Cassivelaunus, St. Albans is frequently mentioned by Cæsar and Tacitus. At the time of Cæsar's first visit to England, which was in 46 B.C., the Britons led a wandering life, and it was only in war time that they gathered together and took refuge in towns. Tacitus and Cæsar describe the Britons as people who had no cities, towns, or buildings of any durable materials. The sites of their towns were chosen with a view to turning to good account all the assistance that Nature could lend, such as woods, ditches, and bogs.
Though Cæsar names no particular town, yet he describes his attack and occupation of the "Oppidum" over which Cassivelaunus was the chief. And from what is known of the progress and distance of Cæsar from the Thames, there seems no doubt that "Verulamium," as it was then