Local government in London recent organisation, having been set up in 2000 to replace the similar Greater London Council (GLC) which had been abolished in 1986. The headquarters of the GLA and the Mayor of London is at City Hall. The current Mayor of London is Sadiq Khan who was elected in 2016, replacing Boris Johnson, who served two terms. Health services in London are managed by the national government through the National Health Service, which is controlled and administered in London by a single NHS Strategic Health Authority called "NHS London". The 33 local authorities are the 32 London borough councils and the
Lord Mayor of London the title Lord Mayor of the City of London was reintroduced, partly to avoid confusion with the Mayor of London. However, the legal and commonly used title remains Lord Mayor of London. The Lord Mayor is elected at "Common Hall" each year on Michaelmas, and takes office on the Friday before the second Saturday in November, at "The Silent Ceremony". The Lord Mayor's Show is held on the day after taking office; the Lord Mayor, preceded by a procession, travels to the Royal Courts of Justice at the Strand to swear allegiance to the sovereign before the Justices of the