Chelmsford is a city of around 156,000 inhabitants and is approximately 40 km north-east of London.
The inventor Guglielmo Marconi carried out the first wireless transmission here. The Marconi company was, for many years, the main employer of the town (before it become a city). The city has a famous cathedral, several theatres, expansive parks and attractive leisure and shopping centres. Chelmsford is the administrative centre of the County of Essex, the county with the largest population in the United Kingdom. Chelmsford is an expanding city, which draws in shoppers and visitors from a wide radius.

Chelmsford has the second smallest cathedral in England. John Dee, who translated Euclid into English, was a pupil at the Cathedral School in the 16th century. Chelmsford is also home to several departments of Anglia Ruskin University.