Only ambiguous archaeological evidence has been found dating from the late Roman period.
A number of seals have been found dating to this phase.
Some 500 fragments of pottery were found dating from the medieval period.
Much more pottery was found dating from the post-medieval period and later.
Photographic evidence of the tradition has been found dating back at least to the 1950s.
Many flint tools have been found dating from this period.
A cache of 4,500 gold coins were found dating from the Roman period.
However, early settlements have been found dating back more than 6400 years ago.
Examples of word problems can be found dating back to Babylonian times.
Roman material has also been found dating from the 2nd century.