1839—An Hawaiian “Bill of Rights” was signed at Lahaina by Kamehameha III. It afforded protection to all people and their property while they conformed to the laws of the kingdom.
1841—Haleakala Crater was visited by Pickering and Breckenridge of the United States Exploring Expedition under Captain John Wilkes, U. S. Navy.
1841-1849—Peak of whaling industry in Hawaii. Lahaina was visited by 596 Whalers in 1846.
1850—David Malo, Hawaiian antiquarian and teacher at Lahainaluna School, Lahaina, conducted Rev. William P. Alexander and Curtis Lyons from Kaupo through Haleakala Crater, to Makawao, “a trip never before undertaken by white men.”
1876—S. F. Alexander and H. P. Baldwin started construction of the Hamakua Ditch, first big irrigation project in Hawaii.
1890—First pineapples were planted at Haiku.
1893—Overthrow of the monarchy and establishment of the Republic of Hawaii. Queen Liliuokalani was the last reigning sovereign.
1898, August 12—Hawaii was annexed to United States by joint legislation of Congress. President Dole was appointed first governor.
1916—Hawaii National Park was established by Act of Congress on August 1 with Haleakala Crater forming the Section on Maui.
1921—Hawaii National Park was formally opened.