The Treaty of Waitangi (Te Tiriti o Waitangi) is a document of central importance to the history of New Zealand, its constitution, and its national mythos. It has played a major role in the treatment of the Māori population in New Zealand by successive governments and the wider population, a role that has been especially prominent from the late 20th century. The treaty document is an agreement, not a treaty as recognised in international law, and has no independent legal status, being legally effective only to the extent it is recognised in various statutes. It was first signed on 6 February 1840 by Captain William Hobson as consul for the British Crown and by Māori chiefs (rangatira) from the North Island of New Zealand.
The treaty was written at a time when the New Zealand Company, acting on behalf of large numbers of settlers and would-be settlers, were establishing a colony in New Zealand, and when some Māori leaders had petitioned the British for protection against French ambitions. It was drafted with the intention of establishing a British Governor of New Zealand, recognising Māori ownership of their lands, forests and other possessions, and giving Māori the rights of British subjects. It was intended by the British Crown to ensure that when Lieutenant Governor Hobson subsequently made the declaration of British sovereignty over New Zealand in May 1840, the Māori people would not feel that their rights had been ignored. Once it had been written and translated, it was first signed by Northern Māori leaders at Waitangi. Copies were subsequently taken around New Zealand and over the following months many other chiefs signed. Around 530 to 540 Māori, at least 13 of them women, signed the Māori language version of the Treaty of Waitangi, despite some Māori leaders cautioning against it. Only 39 signed the English version. An immediate result of the treaty was that Queen Victoria's government gained the sole right to purchase land. In total there are nine signed copies of the Treaty of Waitangi, including the sheet signed on 6 February 1840 at Waitangi.