History of the London Underground to determine the cause. Following the incident, a system that stops a train automatically if the driver fails to brake was introduced at dead-ends on the London Underground. The Northern City Line was connected to British Rail tracks at Finsbury Park in the 1970s. The last tube train ran in October 1975, and British Rail services began in 1976. In 1977, the Piccadilly line was extended from Hounslow to Heathrow Airport, and in 1986 a platform serving Terminal 4 opened on a loop line. The Fleet line through central London was first proposed in 1965, taking over the Bakerloo line's
Sheriffs of the City of London populous parts of Middlesex were included in the new County of London, which had its own High Sheriff. Sheriffs of the City of London Two Sheriffs are elected annually for the City of London by the Liverymen of the City Livery Companies. Today Sheriffs have only nominal duties, but previously had important judicial responsibilities. They have attended the Justices at the Central Criminal Court, Old Bailey since its original role as the Court for the City and Middlesex. The Sheriffs live in the court house complex during their year of service, so that one of them can always be attendant