Dover The Port of Dover provides much of the town's employment, as does tourism. First recorded in its Latinised form of "Portus Dubris", the name derives from the Brythonic word for waters ("dwfr" in Middle Welsh. The same element is present in the town's French ("Douvres") and Modern Welsh ("Dofr") forms (though the modern Welsh name is in fact a borrowing from, and an adaptation of, the English name Dover), as well as the name of the river Dour and is evident in other English towns such as Wendover. The current name was in use at least by the time of
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