The first Prime Minister of New Zealand was Henry Sewell. He assumed office on May 7, 1856. During the early years, the process of appointing the Prime Minister was not as formalized as it is today. In the mid-19th century, the Governor of New Zealand, appointed by the British monarch, played a significant role in selecting individuals to lead the government. Henry Sewell was asked by Governor Thomas Gore Browne to form a government after winning a majority in the New Zealand Parliament. The process evolved over time, leading to the establishment of a more democratic system.