The Hawaiian Monarchy refers to the period when the Hawaiian Islands were ruled by a series of kings and queens, starting in the early 19th century. The most notable monarch was King Kamehameha I, who united the islands in 1810. The monarchy continued until the late 19th century, with Queen Liliʻuokalani being the last reigning monarch before the overthrow in 1893. During its existence, the Hawaiian Monarchy played a significant role in shaping the islands' culture and governance. The monarchy established a constitution and promoted education and agriculture. However, increasing foreign influence and internal conflicts ultimately led to its decline and the eventual annexation of Hawaii by the United States.