Olivet Assembly of New Zealand Celebrates Waitangi Day. Waitangi Day commemorates a significant day in the history of New Zealand. It is observed as a public holiday each year on 6 February to celebrate the signing of the Treaty of Waitangi, New Zealand’s founding document, on that date in 1840. The treaty created a bond with the Maori and … Continue reading Olivet Assembly of New Zealand Celebrates Waitangi Day