Battle of Nuʻuanu and the unification of Hawaiʻi

Kamehameha of Hawaiʻi Island landed a great fleet of war canoes at Waikīkī in 1795 and drove the army of Oʻahu's ruler Kalanikūpule up the Nuʻuanu Valley, where many defenders were forced over the cliffs of the Pali. The victory gave Kamehameha every main island except Kauaʻi, which accepted his rule peacefully in 1810, founding a kingdom that lasted until 1893.