1. September 23, 2022, marked the 175th anniversary of King Kamehameha III's return to the Hawaiian Islands. Kamehameha III was sent to America as a child to receive a Western education, and upon his return, he implemented significant reforms that forever impacted Hawaiian culture.

2. On September 23, 1842, the British government formally recognized the independence of Hawaii through the Anglo-Hawaiian Treaty. This recognition helped solidify Hawaii's status as a sovereign nation.

3. September 23, 1959, was a significant day in Hawaiian history as it marked the day that Hawaii officially became the 50th state of the United States. The statehood proclamation ceremony took place in Honolulu and was attended by more than 10,000 people.

4. On September 23, 1991, Hurricane Iniki struck the Hawaiian Islands, causing widespread destruction and resulting in over 6,000 people being left homeless. Iniki was the most powerful hurricane to hit Hawaii in recorded history.

5. September 23, 2018, was the day that the Mauna Kea Access Road was reopened after a 130-day closure due to protests against the construction of the Thirty Meter Telescope. The road provides access to the Mauna Kea Observatories, which are renowned for their contributions to astronomy and astrophysics.