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History

King Kamehameha: The Chief Who United Hawaii

Who King Kamehameha the Great was, how he united the Hawaiian Islands into one kingdom, the laws and legacy he left, and how Hawaii honors him today.

Updated September 13, 2026
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No figure shaped Hawaii more completely than Kamehameha I. Born on the Big Island around 1758 to a chief of high rank, he spent decades in war, diplomacy, and strategy before achieving what no Hawaiian ruler before him had managed: the unification of all the main islands into a single sovereign kingdom. He died in 1819. The state he built lasted until the overthrow of 1893. His bronze statue stands before courthouses across the islands, draped in fresh lei every June 11. This is the story of how he got there.

Who Kamehameha was

Born around 1758 on the Big Island of Hawaiʻi in the Kohala district, Kamehameha came from a high-ranking chieftain family. His birth was reportedly marked by the appearance of Halley's Comet, which Hawaiian priests interpreted as an omen of greatness. His childhood name was Paiʻea; he became known as Kamehameha, "the lonely one" or "the one set apart." Raised under the protection of high chiefs who recognized his potential, he was trained in warfare, strategy, diplomacy, and the spiritual practices required of an aliʻi (chief).

Kamehameha rose to power during a time when the Hawaiian Islands were divided among independent chiefs who frequently warred with one another. He was trained by his uncle Kalaniʻōpuʻu, the paramount chief of the Big Island, and fought in campaigns from an early age. By the 1780s, after Kalaniʻōpuʻu's death, Kamehameha had consolidated control of the Big Island through a combination of military victories, strategic alliances, and ruthless political maneuvering. He combined military strength, tactical brilliance, diplomatic skill, and an ability to adopt Western military technology - particularly cannons and firearms acquired from European traders.

Uniting the islands

Through a series of military campaigns beginning in the 1780s, Kamehameha unified the Hawaiian Islands for the first time in their history. The decisive campaign came in 1795. After securing control of Maui, Molokaʻi, and Lānaʻi, Kamehameha invaded Oʻahu, landing at Waikīkī with a fleet of war canoes and an army of thousands. The Battle of Nuʻuanu followed: Kamehameha's forces drove the defending army of Chief Kalanikūpule up the Nuʻuanu Valley and over the cliffs of the Nuʻuanu Pali, where hundreds fell to their deaths. Oʻahu fell to Kamehameha's control.

Two islands remained independent: Kauaʻi and Niʻihau, under Chief Kaumualiʻi. Kamehameha attempted invasions but was turned back by storms and strategic resistance. In 1810, Kaumualiʻi peacefully ceded the islands to Kamehameha, completing the unification without further bloodshed. The Hawaiian Kingdom was born as a unified state for the first time.

Around 1790-1791, following a prophecy, Kamehameha built Puʻukoholā Heiau on the Big Island's Kohala coast, a massive stone temple dedicated to his war god Kūkaʻilimoku. The heiau was consecrated with the sacrifice of a rival chief, Keōua Kuahuʻula, cementing Kamehameha's spiritual and political authority. The construction of the heiau is understood as a pivotal moment in Kamehameha's path to unification.

His laws and legacy

Kamehameha is remembered for establishing the Kānāwai Māmalahoe, the Law of the Splintered Paddle, one of the most famous decrees in Hawaiian history. The law states: "Let every elderly person, woman, and child lie by the roadside in safety." It originated from an incident years earlier when Kamehameha attacked two fishermen and one of them struck him with a paddle, breaking it over his head. Kamehameha's foot caught in a lava crevice and he was stranded, allowing the fishermen to escape. Years later, when the men were brought before him, Kamehameha spared them and instead decreed the law protecting non-combatants and travelers. This principle is still referenced in Article IX, Section 10 of the Hawaii State Constitution: "the law of the splintered paddle, mamala-hoe kanawai, decreed by Kamehameha I... shall be a unique and living symbol of the State's concern for public safety."

Kamehameha's leadership established a strong centralized state, opened trade with Western nations, and set the political foundation for the monarchy that followed. His heirs ruled as the Kamehameha dynasty until 1872. Later monarchs including King David Kalākaua and Queen Liliʻuokalani built on the kingdom he founded. Kamehameha died in May 1819 at Kailua-Kona on the Big Island. Following Hawaiian custom, his remains were hidden in a secret burial location that has never been found, preserving his mana (spiritual power) forever.

Kamehameha today

Statues of Kamehameha stand in Honolulu and elsewhere, and June 11 is Kamehameha Day, a state holiday marked by long lei draped over the statues and floral parades. His story is a good starting point for understanding the full history of Hawaii and the culture it shaped.

Frequently Asked Questions

Who was King Kamehameha?
Kamehameha I, also called Kamehameha the Great, was the chief who united the Hawaiian Islands into a single kingdom by the early 1800s. He founded the Kamehameha dynasty and is one of the most important figures in Hawaiian history.
What is Kamehameha known for?
He is known for unifying the islands, establishing a lasting kingdom, and for the "Law of the Splintered Paddle" (Kānāwai Māmalahoe), which protected non-combatants and travelers. Kamehameha Day, June 11, honors him.
Is Kamehameha Day a holiday in Hawaii?
Yes. June 11 is Kamehameha Day, a state holiday marked by lei-draping ceremonies on his statues, floral parades, and celebrations of Hawaiian culture.

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We research each guide against primary sources: the Hawaii Tourism Authority and Mālama Hawaii, the National Park Service, the State of Hawaii and its Division of State Parks, the National Weather Service, and the U.S. Census. For culture, language, and history we lean on the Office of Hawaiian Affairs, the Bishop Museum, and the scholarship of Mary Kawena Pukui. We send readers to those sources rather than speaking over them. When rules, prices, or conditions change, we update the page.