1. On September 16, 1922, the first-ever inter-island flight in Hawaii took place, when pilot Sam Elliott flew his seaplane from Honolulu to Maui. This marked a significant event in Hawaii's aviation history and paved the way for improved transportation and accessibility between the islands.

2. In 1963, September 16 was designated as "Kamehameha Day" in Hawaii, in honor of Kamehameha I, the first king of Hawaii. This day is celebrated annually with cultural events and parades in honor of the king's legacy.

3. On September 16, 1984, Hurricane Iwa made landfall on the island of Kauai, causing extensive damage and resulting in two fatalities. The hurricane served as a reminder of the power of nature and the importance of being prepared for natural disasters in Hawaii.

4. In 1991, the Makapuu Lighthouse Trail was officially opened to the public on September 16. This scenic trail offers breathtaking views of the ocean and the surrounding landscape, making it a popular destination for residents and visitors alike.

5. On September 16, 2011, Hawaiian Airlines launched its first-ever non-stop flight from Honolulu to Tokyo, Japan. This marked a significant milestone for the airline and helped to strengthen ties between Hawaii and Japan, which has become an increasingly important market for Hawaii's tourism industry.