Queensland: Polity Style: 1859-1901

10 Dec 1859	part of the Colony of New South Wales is separated and erected into a separate colony to be called the Colony of Queensland on 10 Dec 1859, the date of publication of letters patent (charter) issued by command of the Queen of the United Kingdom on 6 Jun 1859 under an act passed by the Parliament of the United Kingdom (House of Commons on 29 Jun 1855, House of Lords on 13 Jul 1855, received royal assent on 16 Jul 1855) (Public General Acts, 1854-1855, pp. 149-170; New South Wales Government Gazette, Extra, No. 244, 1 Dec 1859, pp. 2639-2642; Queensland Government Gazette, No. 1, 10 Dec 1859, pp. 1-3) [1][2]
10 Dec 1859 - 31 Dec 1900	Colony of Queensland
1 Jan 1901	the Colony of Queensland constitutes an original state of the Commonwealth of Australia on 1 Jan 1901, the date appointed by a royal proclamation of 17 Sep 1900, issued under an act passed by the Parliament of the United Kingdom (House of Commons on 25 Jun 1900, House of Lords on 5 Jul 1900, received royal assent on 9 Jul 1900) (Public General Acts, 1900, pp. 24-45; Australia Government Gazette, No. 1, 1 Jan 1901, p. 1) [3]

Full title: An Act to enable Her Majesty to assent to a Bill, as amended, of the Legislature of New South Wales, "to confer a Constitution on New South Wales, and to grant a Civil List to Her Majesty."
The letters patent were published in the New South Wales Government Gazette in Sydney on 1 Dec 1859 and were formally proclaimed in Brisbane on 10 Dec 1859.
Full title: An Act to constitute the Commonwealth of Australia (may be cited as the Commonwealth of Australia Constitution Act).