New Zealand: Polity Style: 1840-1841

30 Jan 1840	the territories of New Zealand which are or may be acquired in sovereignty by the Queen of the United Kingdom of Great Britain and Ireland are placed under the administration of Governor of New South Wales in accordance with letters patent issued by command of the Queen on 15 Jun 1839, effective on the issuance of a proclamation by Lieutenant Governor of New Zealand on 30 Jan 1840 at Russell (Kororāreka), Bay of Islands (TNA CO 380/122, f 5-8; New Zealand Archives, Constitutional papers, R21434429; New South Wales Despatches 1840, p. 8)
6 Feb 1840	"sovereignty" over the territories exercised by the chiefs of some tribes of North Island of New Zealand is ceded to the British Crown in accordance with a treaty concluded at Waitangi, North Island (Waitangi Treaty Facsimiles, pp. 6-7) [1]
21 May 1840	the sovereignty over the North ("Northern") Island, South ("Middle") Island, and Stewart Island of New Zealand is vested in the British Crown in accordance with the proclamations issued by Lieutenant-Governor of New Zealand on 21 May 1840 in Russell (Kororāreka), Bay of Islands (New Zealand Advertiser, No. 1, 15 Jun 1840, p. 1)
3 May 1841	the islands of New Zealand and adjacent islands are separated from New South Wales, and constituted and erected into a separate colony on 3 May 1841, the date of issuance of a proclamation by Governor of New Zealand in Auckland, publishing the letters patent issued by command of the Queen of the United Kingdom of Great Britain and Ireland on 16 Nov 1840 under an act passed by the Parliament of the United Kingdom (House of Commons on 29 Jul 1840, House of Lords on 6 Aug 1840, received royal assent on 7 Aug 1840) (UK Statutes, 1840, pp. 346-347; New Zealand Archives, Constitutional papers, R21434434; New Zealand Journal (London), No. 40, 31 Jul 1841, pp. 186-187; British Parliamentary Papers, 1842, 28:103-104; New Zealand Gazette, No. 13, 13 May 1841, p. 1; New Zealand Gazette, No. 1, Supplement B, 7 Jul 1841, p. 1) [2]

The term "sovereignty" is used in the English version of the treaty, while the term featuring in the Māori version was kāwanatanga (governorship), a loan word and not part of the Māori language at the time. The treaty was signed by a number of chiefs on 6 Feb 1840, more signatures were added to the treaty from February to September 1840, including those from some parts of the South Island.
Full title: An Act to continue until the Thirty-first Day of December One thousand eight hundred and forty-one, and to the End of the then next Session of Parliament, and to extend, the Provisions of an Act to provide for the Administration of Justice in New South Wales and Van Diemen's Land, and for the more effectual Government thereof, and for other Purposes relating thereto.