Te Tiriti o Waitangi (the Treaty of Waitangi) is New Zealand’s founding document, and it takes its name from the place in the Bay of Islands where it was first signed on 6 February, 1840. This date is now a public holiday in New Zealand, Waitangi Day. The Treaty is an agreement, in Māori and English, that was made between the British Crown and about 540 Māori rangatira (chiefs). It was created around the idea of unity, relationship and moving forward together - so it's important to have a good understanding of the Treaty in order to understand New Zealand's history and also how it applies to us today.
Check out The Salvation Army New Zealand's official statement on biculturalism and the Treaty of Waitangi here.
Te Tiriti o Waitangi Website
This website provides a lot of history and information about the Treaty: nzhistory.govt.nz/politics/treaty-of-waitangi
There are a heap of other resources out there about the Te Tiriti o Waitangi and its history. Check out your local library or have a hunt around online, and get educated!