What is Middlesex?
{{other uses}} {{infobox historic subdivision| |Name= Middlesex |flag_image= [[File:Flag of Middlesex.svg|150px]] |arms_image= [[File:Middx arms.png|90px]] |HQ= ''see text'' |Government= [[Middlesex County Council]] (1889–1965) |Origin= [[Middle Saxons]] |Status= [[Ceremonial counties of England|Ceremonial county]] (until 1965)<br>[[Administrative counties of England|Administrative county]] (1889–1965) |Start= [[Historic counties of England|In antiquity]] |End= |Code= MDX |CodeName= [[Chapman code]] |Replace= 1889: to [[County of London]]<br>1965: [[Greater London]] and<br>small parts to [[Surrey]] and [[Hertfordshire]] |Motto= |Divisions= [[hundred (country subdivision)|hundreds]] (ancient) |Image= |Map= [[File:EnglandMiddlesexTrad.png|75px|Ancient extent of Middlesex]][[File:EnglandMiddlesex1890.png|75px|Middlesex in 1889]]<br>''Ancient and 1889 extent of Middlesex'' |Arms= [[File:Flag of Middlesex.png|150px]]<br>''Banner of arms of Middlesex County Council'' |Civic= |PopulationFirst= 818,129<ref name=vic_pop>{{cite web | url=http://www.british-history.ac.uk/report.aspx?compid=22159 | title=Table of population, 1801-1901 | publisher=A History of the County of Middlesex: Volume 22 | year=1911 | accessdate=2008-02-20 | archive-date=2011-05-14 | archive-url=https://web.archive.org/web/20110514001426/http://www.british-history.ac.uk/report.aspx?compid=22159 | url-status=dead }}</ref> |PopulationFirstYear= 1801 |AreaFirst= {{convert|181320|acre|km2|0}}<ref name=vic_pop/> |AreaFirstYear= 1801/1881 |DensityFirst= 4.5/acre |DensityFirstYear= 1801 |PopulationSecond= 2,920,485<ref name=vic_pop/> |PopulationSecondYear= 1881 |AreaSecond= |AreaSecondYear= |DensitySecond= 16.1/acre