New Zealand was granted colonial self-government in 1853 following the New Zealand Constitution Act 1852, which was an Act of the Parliament of the United Kingdom. Governments were set up at both central and provincial level, with initially six provinces. The provinces were abolished by the Abolition of Provinces Act 1876, during the premiership of Harry Atkinson. For the purposes of the Act, the provinces formally ceased to exist on 1 January 1877.
The Sewell Ministry constituted the first responsible government, with control over all domestic matters other than native policy. Formed in 1856, it lasted from 18 April to 20 May. From 7 May onward, Henry Sewell was titled "colonial secretary", and is generally regarded as having been the country's first prime minister. The first ministry that formed along party lines did not appear until 1891, when John Ballance formed the Liberal Party and the Liberal Government. The prime minister became the leader and public face of the governing party. The status of the monarch's representative was upgraded from "governor" to "governor-general" in 1917 letters patent.