Excavations in 1995 indicated that it dates back to the 13th century.

Excavations from the years 1939 and 1941 indicate that the place had been used as a habitation since early times.

The excavation of over 1,000 graves at and near the site indicate that Christianity was established very early.

The excavations indicate developing urbanization and the presence of new populations.

Excavations in 1981 indicate that the town itself has existed for at least 1000 years; the earliest historical mention is from 1233.

But excavations have so far failed to support this image and indeed have indicated a town in decline.

Earlier excavations had indicated Saxon burials in the area however it was not expected to make such a find.

Latest archaeological excavations indicate that this could have been as early as in the 6th century.

Earlier excavations had indicated Saxon burials in the area however it was not expected that such a significant find could be made.

Initial excavations indicate that it was related in some way to the others, but had no buildings within the rampart.