1. In 1974, the Haleakala Observatory on Maui discovered the first known asteroid with an orbit almost entirely inside the Earth's orbit. The asteroid was named 2050 Chiron, after the Greek mythological centaur, and its discovery marked a significant advancement in the study of our solar system.

2. On December 22, 1871, King David Kalakaua proclaimed a national holiday in honor of the birthday of Emperor Meiji of Japan, who was a significant ally to Hawaii. The holiday was known as Tenno no Tanjobi, or "Emperor's Birthday," and it was celebrated annually in Hawaii until World War II.

3. In 1967, the Hilo Airport on the island of Hawaii was officially dedicated, replacing the previous airport in Hilo that was no longer able to handle the increased traffic of the growing tourism industry. The new airport featured a modern terminal building and runway capable of handling large commercial aircraft.

4. The USS Arizona Memorial at Pearl Harbor was officially dedicated on December 22, 1962, by Admiral Harry D. Felt, commander in chief of the Pacific Fleet. The memorial honors the sailors and Marines who lost their lives on the battleship USS Arizona during the surprise attack on Pearl Harbor on December 7, 1941.

5. In 1971, the Hawaii State Department of Health launched a statewide campaign to encourage the use of seat belts in cars. The campaign included advertisements and public outreach efforts aimed at increasing awareness of the benefits of wearing seat belts, and it helped pave the way for Hawaii's eventual adoption of mandatory seat belt laws in 1984.