how did jerome explained dorchester??

"Dorchester is a delightfully peaceful old place, nestling in stillness and silence and drowsiness. Dorchester, like Wallingford, was a city in ancient British times; it was then called Caer Doren, “the city on the water.” In more recent times the Romans formed a great camp here, the fortifications surrounding which now seem like low, even hills. In Saxon days it was the capital of Wessex. It is very old, and it was very strong and great once. Now it sits aside from the stirring world, and nods and dreams." (chapter 18)