The independence of New Zealand is a matter of continued academic and social debate. New Zealand has no fixed date of independence from the United Kingdom; instead, political independence came about as a result of New Zealand's evolving constitutional status. The concept of a national "Independence Day" does not exist in New Zealand. Beginning in the late 1700s New Zealand's existing Māori population was supplemented by sealers and whalers, followed by sporadic arrivals of adventurers from Europe and the Americas, Christian missionaries, and escaped convicts from Australia. During this time New Zealand was under no formal rule and was ignored by the British who were otherwise involved in developing neighbouring Australia as a British colony. French interests in New Zealand prompted the British to draw their attention to New Zealand and make efforts in establishing British rule, firstly by "declaring" New Zealand as part of the Colony of New South Wales. The inclination of the Colonial Office in London to adopt the subterfuge of regarding New Zealand as “a Foreign Power under a regular Government” was demonstrated by the appointment of James Busby from Australia as the official British Resident to New Zealand. Busby arrived in New Zealand in May 1833. In 1835, a number of Māori chiefs asserted their sovereignty within their independent tribal nations by signing the Declaration of the Independence of New Zealand (He Whakaputanga o te Rangatiratanga o Nu Tireni). On 6 February 1840, William Hobson, as representative of the United Kingdom, and Māori chiefs signed the Treaty of Waitangi, which established the right of the British Crown to govern, and Hobson subsequently proclaimed British sovereignty over the islands in May of the same year. On 17 August 1840 the first French colonists arrived in Akaroa, soon learning of the new British rule, and thus effectively ending any further colonization attempts by France. The connection was severed formally when the last Commissaire du Roi (Representative of the King of France) departed New Zealand on 10 April 1846. On 16 November 1840, the British government issued the Charter for Erecting the new Colony of New Zealand. The Charter stated that the Colony of New Zealand would be established as a Crown colony separate from New South Wales on 1 July 1841. In 1853, only 12 years after the founding of the colony, the British Parliament passed the New Zealand Constitution Act 1852 to grant the colony's settlers