polder of sorts and the Glen was directed along the old sea bank which then became one of the river banks. Thus, the course of the road was determined ultimately, by that of the sea bank. The River Glen will have been in the phase when it flowed into the tidal marsh, with its mouth at Guthram, at around 500, the time when the unknown writer who goes under the name of Nennius tells us that King Arthur fought his first battle against the English settlers at the mouth of the River Glein. See Historia Britonum numbered paragraph 3. See also Sites and places associated with Arthurian legend. Footnotes References Roads in England Roads in Lincolnshire