The London Borough of Hackney ( (listen) HAK-nee) is a London borough in Inner London. The historical and administrative heart of Hackney is Mare Street, which lies 5 miles (8 km) north-east of Charing Cross. The borough is named after Hackney, its principal district. Southern and eastern parts of the borough are popularly regarded as being part of east London, with the northwest belonging to north London. The London Plan issued by the Greater London Authority assigns whole boroughs to sub-regions for statutory monitoring, engagement and resource allocation purposes. The most recent (2011) iteration of this plan assigns Hackney to the ‘East’ sub-region, while the 2008 and 2004 versions assigned the borough to ‘North’ and ‘East’ sub-regions respectively. The modern borough was formed 1965 by the merger of the Metropolitan Borough of Hackney with the much smaller Metropolitan Boroughs of Stoke Newington and Shoreditch. Hackney is bounded by Islington to the west, Haringey to the north, Waltham Forest to the north-east, Newham to the east, Tower Hamlets to the south-east and the City of London to the south-west. Hackney was one of the host boroughs of the London Olympics in 2012, with several of the Queen Elizabeth Olympic Park venues falling within its boundaries.