Thomas Square was officially established in 1850 and is named in honor of British Admiral Richard Darton Thomas. In 1843, Queen Victoria sent Thomas to the island to restore Hawaiian sovereignty. Thomas landed in July 1843 and ended the unauthorized British takeover that had occurred five months earlier by Captain Lord George Paulet. The attempt to occupy and control Hawaii in 1843 is known as The Paulet Affair and serves as context for other attempts to control the island chain in the 19th century. The ceremony to restore King Kamehameha III to power took place at the park. The current state motto is "the life of the land is preserved in righteousness," a phrase that was first used by the restored King of Hawaii at this ceremony. The park features a bronze sculpture of "Kamehameha III" next to the Hawaiian flag and is administered by the Department of Parks and Recreation.
Thomas Square derives its name from British Rear-Admiral Richard Thomas who arrived to restore Hawaiian sovereignty and subsequently reverse the actions of British Lord George Paulet who had seized Hawaii (without authorization) for Britain five months earlier. The ceremony took place on the grounds now named for Admiral Thomas. There, Hawaiian King Kamehameha III proclaimed, "Ua mau ke ea o ka 'aina i ka pono," which roughly translates to "The life of the land is preserved in righteousness," which now serves as the Hawaii state motto.
During the early 1840s, the Hawaiian Kingdom sought international recognition of its independence. He sent diplomats to Britain, Russia, France, and the United States, which appeared to be successful in removing those nations' desire to gain control over the islands, be it politically, economically or militarily (something they had all indicated a willingness to do at some point).
In the early 1840s, the British consul got word of harassment towards British subjects living in Hawaii. In response, Admiral Thomas sent Lord George Paulet, captain of the frigate Carysfort to sail to Hawaii and investigate the situation and meet with King Kamehameha III. When Paulet arrived, Kamehameha III was located on a different island than Oahu, where Paulet landed. A series of communications frustrated Paulet, who demanded to meet with Kamehameha III, but the delays pushed Paulet to choose the more drastic option of taking control of the island in the name of Great Britain. On February 10, 1843, to avoid bloodshed, Kamehameha III agreed to Paulet's demands and decided to relinquish the Islands to Paulet. However, Paulet's actions contradicted British policy,
Queen Victoria ordered Rear-Admiral Richard Thomas, commander-in-chief of the British Pacific Squadron, to set sail for Hawaii in the summer of 1843 and rectify the unapproved conquest carried out by Paulet -- known now as The Paulet Affair. Thomas arrived in Honolulu on July 26 on his flagship HMS Dublin and immediately became Local Representative of the British Commission (he out-ranked Paulet). Five days later, on July 31, Thomas restored Kamehameha III as leader of Hawaii and thus returned the island's sovereign status; the British Flag was taken down and replaced with the Hawaiian flag.
In a speech delivered at Kawaiahao Church, Kamehameha III declared, "Ua mau ke ea o ka 'aina i ka pono," which means "The life of the land is preserved in righteousness," which now serves as the state motto. Kamehameha III later named the place where the ceremony was held in Downtown Honolulu "Thomas Square" in Admiral Thomas's honor and dedicated it as a public park.
Carter, Chris. "25 February 1843: Hawaii occupied during the Paulet Affair." Moneyweek. MoneyweekFebruary 25, 2016. . https://moneyweek.com/428138/25-february-1843-hawaii-occupied-during-the-paulet-affair/
"Lord Paulet Temporarily Claims Hawai`i for Britain." HawaiiHistory.org. Accessed March 11, 2019. http://www.hawaiihistory.org/index.cfm?fuseaction=ig.page&PageID=286&returntoname=Short%20Stories&returntopageid=483.
"Provisional Cession of the Sandwich Islands to Great Britain.—February 1843." in British and Foreign State Papers, Volume 31, Part 1, pp. 1023-1029. London: James Ridgway & Sons, Piccadilly, 1858. Link to page 1023: https://books.google.com/books?id=1qADAAAAQAAJ&pg=PA1023#v=onepage&q&f=false
Riconda, Dorothy. "Nomination Form: Thomas Park." National Register of Historic Places. nps.gov. April 25, 1972. https://npgallery.nps.gov/GetAsset/980d9c34-b084-4289-8f5e-02b0504fed1b
Tate, Merze. "Great Britain and the Sovereignty of Hawaii." Pacific Historical Review 31, no. 4 (1962).
Thomas Square: By Joel Bradshaw - Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=6442302