This failed on first introduction, but was successful in 1876 and contributed to Plimsoll's re-election as an MP.
This popular belief is asserted by Tim Lambert who states, "The name Derby is derived from the Danish words deor by meaning deer settlement." However the origin of the name "Derby" would seem to be elusive: some say it is a corruption of the original Roman name 'Derventio': pronunciation of the letter 'v' as 'b', hence Derbentio, hence Derby, whilst others claim the name could be linked with the river Derwent which flows through the city, in that Derby could be a shortened version of Derwent by, meaning "Derwent settlement".
Another possible origin comes from Celtic because "Derwent" means "a valley thick with oaks". These areas of land were known as Norþworþig ("Northworthy", = "north enclosure") and Deoraby, and were at the "Irongate" (north) side of Derby.
In 1840, the North Midland Railway set up its works in Derby and, when it merged with the Midland Counties Railway and the Birmingham and Derby Junction Railway, to form the Midland Railway, Derby became its headquarters.
The connection with the railway encouraged others, notably Andrew Handyside, Charles Fox and his son Francis Fox.
Derby and Derbyshire were among the centres of Britain's Industrial Revolution. Lee's Framework Knitting Machine; it was placed in front of – and worked in unison with – Lee's Frame, to produce ribbed hose (stockings).