The Separation of Queensland was an event in 1859 in which the land that forms the present-day State of Queensland was removed from the Colony of New South Wales and created as a separate Colony of Queensland.
European settlement of Queensland began in 1824 when Lieutenant Henry Miller, commanding a detachment of the 40th Regiment of Foot, founded a convict outpost at Redcliffe. The settlement was transferred to the north bank of the Brisbane River the following year and continued to operate as a penal establishment until 1842, when the remaining convicts were withdrawn and the district opened to free settlement. By then squatters had already established themselves on the Darling Downs, far distant from the seat of the New South Wales government in Sydney. Agitation soon commenced for the creation of a separate northern colony which could look after local interests, with the clamour being no less apparent in the fledgling township of Brisbane.
In the vanguard of those seeking representative government was the Reverend John Dunmore Lang, representative for Moreton Bay in the New South Wales Legislative Council. Lang's call for the creation of a northern colony in 1844 was defeated in the Council by 26 votes to seven, and matters were held in abeyance until 1850 when the British Parliament passed the Australian Colonies Government Act, which enabled the creation of new Australian colonies with a similar form of government to New South Wales. In other words, they would have a bicameral parliament watched over by a vice-regal representative. Importantly, specifically mentioned Port Phillip and Moreton Bay as districts which were likely to become colonies in the foreseeable future. The Act inspired Lang to renewed efforts, and between 1851 and 1854 he held nine meetings to gain further support for separation. He was, in fact, preaching to the converted as the inhabitants of the northern district had been increasingly neglected by the government in Sydney.