The Hawaiian Kingdom, also known as the Kingdom of Hawaiʻi (Hawaiian: Ke Aupuni Hawaiʻi [kɛ ɐwˈpuni həˈvɐjʔi]), was an archipelagic country from 1795 to 1893, which eventually encompassed all of the inhabited Hawaiian Islands. It was established in 1795 when Kamehameha I, then Aliʻi nui of Hawaii, conquered the islands of Oʻahu, Maui, Molokaʻi, and Lānaʻi, and unified them under one government. In 1810, the Hawaiian Islands were fully unified when the islands of Kauaʻi and Niʻihau voluntarily joined the Hawaiian Kingdom. Two major dynastic families ruled the kingdom, the House of Kamehameha and the House of Kalākaua.
The kingdom subsequently gained diplomatic recognition from European powers and the United States. An influx of European and American explorers, traders, and whalers soon began arriving to the kingdom, introducing diseases such as syphilis, tuberculosis, smallpox, and measles, leading to the rapid decline of the Native Hawaiian population. In 1887, King Kalākaua was forced to accept a new constitution after a coup d'état by the Honolulu Rifles, a volunteer military unit recruited from American settlers. Queen Liliʻuokalani, who succeeded Kalākaua in 1891, tried to abrogate the new constitution. She was subsequently overthrown in a 1893 coup engineered by the Committee of Safety, a group of Hawaiian subjects who were mostly of American descent, and supported by the U.S. military. The Committee of Safety dissolved the kingdom and established the Republic of Hawaii, intending for the U.S. to annex the islands, which it did on July 7, 1898, via the Newlands Resolution. Hawaii became part of the U.S. as the Territory of Hawaii until it became a U.S. state in 1959.
