Short answers, pulled from the story.
The Strait of Dover measures just 21 miles from the English coast to Cap Gris Nez in France. This narrowest point of the English Channel creates a natural choke point that has defined the town's existence for millennia.
The Dover boat was discovered in 1992 at a depth of six metres underwater. Radiocarbon dating determined the vessel was constructed approximately 1550 BC, making it one of the oldest known seaworthy boats.
Louis VIII of France landed his army on the mainland beach during the Siege of Dover in 1216 to depose King Henry III. French control of Dover lasted for three months before English troops pushed back and forced the French to surrender.
Vera Lynn recorded the song The White Cliffs of Dover in 1942 during the Second World War. The track became an anthem of hope and determination for the British people.
New retail in the St James' area opened in 2018 as part of significant transformations in the town. This development followed a £330m investment that included a new 500m Pier to the west of the Harbour in 2019.
The secret facility beneath Dover Castle was omitted from the strategic objects appearing on the Soviet 1:10,000 city plan of Dover that was produced in 1974. This omission ensured that the enemy did not know the full extent of the town's defensive capabilities.