Yorkshire a third part. The three ridings in Yorkshire were named the East Riding, West Riding and North Riding. The East and North Ridings of Yorkshire were separated by the River Derwent and the West and North Ridings were separated by the Ouse and the Ure/Nidd watershed. In 1974 the three ridings of Yorkshire were abolished and York, which had been independent of the three ridings, was incorporated into the new county called North Yorkshire. It later became part of York Unitary Authority. For statistical purposes, Yorkshire is divided, as of 2018, between three regions of England. Most of the county
Middlesex East in London city riding. In 1947, it was redefined to consist of the townships of North Dorchester, London, West Nissouri and Westminster, and the eastern part of the City of London. In 1952, it was redefined to consist of the Townships of Dorchester North, Nissouri West, Westminster, the eastern part of the Township of London, and the eastern part of the City of London. The electoral district was abolished in 1966 when it was redistributed between London East, London West and Middlesex ridings. It was re-created in 1976 from parts of Huron—Middlesex, London East and Middlesex—London—Lambton ridings, but was renamed