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 and garrisoned initially by the Classis Britannica, and later by troops based in a Saxon Shore Fort. At the start of his first attempt to conquer Britain in 55BC Julius Caesar initially tried to land at Dubris, whose natural harbour had presumably been identified by Volusenus as a suitable landing place. However, when he came in sight of shore, the massed forces of the Britons gathered on the overlooking hills and cliffs dissuaded him from landing there, since the cliffs were "so close to the shore that javelins could be thrown down from" them onto anyone landing there. After waiting