In 1837, John Moresby visited the Island of Papua New Guinea and claimed it for Britain and named it after his father. It is one of the biggest cities in Papua New Guinea. In 1905, the government of Australia passed the Papua Act. In this act, Papua transferred with Port Moresby as the capital. This capital served to direct the Australian rule on the Island. In 1925, the city grew gradually, and in 1941 electricity was first introduced and piped water. When Papua New Guinea became independent Port Moresby became the capital city in 1975. The population of the city has grown from 120,000 people in the 1980s to 195,000 people in the 1990s.