Final answer:
Cricket was established as a major sporting code in New Zealand in 1843.
Step-by-step explanation:
The establishment of cricket as a major sporting code in New Zealand took place in 1843. During the colonial era, when New Zealand was included with the colony of New South Wales, the game of cricket began to gain popularity. The development of a local parliament and a representative government in the 1840s contributed to the growth of cricket as a significant sport in the country.