Hackney was a two seat constituency in the House of Commons of the Parliament of the United Kingdom created under the Representation of the People Act, 1867 from the division of the county constituency of Middlesex and reformed under the Redistribution of Seats Act, 1885 as Hackney North, Hackney Central and Hackney South. The constituency existed in this two seat form for three general elections and returned two Liberal Party Members at each until its abolition and division into one seat constituencies. More information, including lists of MPs and elections, on the Wikipedia page [1].