Dover Shakespeare's "King Lear" (between 1603 and 1606), in which the town and its cliffs play a prominent role. Archaeological finds have shown that there were Stone Age people in the area, and that some Iron Age finds also exist. During the Roman period, the area became part of the Roman communications network. It was connected by road to Canterbury and Watling Street and it became "Portus Dubris", a fortified port. Dover has a partly preserved Roman lighthouse (the tallest surviving Roman structure in Britain) and the remains of a villa with the only preserved Roman wall painting outside Italy. Dover
Dubris smaller bases in Britannia itself, at Rutupiae and Dubris. Two lighthouses, each called the Pharos, were built soon after the conquest. Proposals of their date range from 50 (only seven years after the invasion of 43), 80 or (since the building includes tiles identical to the mansio in the town built at that date) c. 138, though the general consensus is for a 1st-century AD date. They were sited on the two heights (Eastern Heights and Western Heights) and modelled on the one built for Caligula's aborted invasion at Boulogne. The one on the Eastern Heights still stands in the