Hector Munro Chadwick,
1911 Encyclopædia Britannica, Volume 4…
(1911)
“ There is little or no evidence for the existence of towns other than Roman in early times, for the word urbs is merely a translation of burg, which was used for any fortified dwelling-place, and it is improbable that anything which could properly be called a town was known to the invaders before their arrival in Britain. The Danish settlements at the end of the 9th century and the defensive system initiated by King Alfred gave birth to a new series of fortified towns, from which the boroughs of the middle ages are mainly descended. ”
