A small historical reference (Wiki)
Geography: Plymouth - is a city on the south coast of Devon, England, about 37 miles (60 km) south-west of Exeter and 190 miles (310 km) west-south-west of London, between the mouths of the rivers Plym to the east and Tamar to the west where they join Plymouth Sound to form the boundary with Cornwall.
Date of foundation: XII century
History: Plymouth's early history extends to the Bronze Age, when a first settlement emerged at Mount Batten. This settlement continued as a trading post for the Roman Empire, until it was surpassed by the more prosperous village of Sutton founded in the ninth century, now called Plymouth. During the English Civil War the town was held by the Parliamentarians and was besieged between 1642 and 1646.
Throughout the Industrial Revolution, Plymouth grew as a commercial shipping port, handling imports and passengers from the Americas, and exporting local minerals (tin, copper, lime, china clay and arsenic) while the neighbouring town of Devonport became a strategic Royal Naval shipbuilding and dockyard town. In 1914 three neighbouring independent towns, viz., the county borough of Plymouth, the county borough of Devonport, and the urban district of East Stonehouse were merged to form a single County Borough. The combined town took the name of Plymouth which, in 1928, achieved city status.
Population: 261 546
Ceremonial county: Devon