Portsmouth enrols 23,000 students and is ranked among the world's best modern universities. Portsmouth is also the birthplace of author Charles Dickens and engineer Isambard Kingdom Brunel. The Romans built Portus Adurni, a fort, at nearby Portchester in the late third century. The city's Old English name "Portesmuða" is derived from "port", meaning a haven, and "muða", the mouth of a large river or estuary. The "Anglo-Saxon Chronicle" has a warrior called Port and his two sons killing a noble Briton in Portsmouth in 501. Winston Churchill, in his "A History of the English-Speaking Peoples", says that Port was a pirate
Landport (Gibraltar) moat covering the northern approach — the Landport Ditch. The ditch's defences included a palisade and a gunpowder mine which could be exploded beneath an assault. To cross these defences, there was a drawbridge which was pulled up at night. Tobacco smugglers would exit the gate at this time and lurk outside, waiting for an opportunity to cross the neutral ground into Spain during the night. Landport (Gibraltar) The Landport (Puerta de Tierra/España) is a gate into the territory of Gibraltar. It was originally the only entrance to the fortification from the land and so was heavily fortified and guarded.