1. In 1895, the Royal Hawaiian Band played at the Honolulu Armory to celebrate King Kalakaua's birthday. Kalakaua was the last reigning king of Hawaii and his birthday was declared a national holiday. The band continues to play at various events around the state.

2. In 1934, the USS Arizona was launched at the Naval Shipyard in Pearl Harbor. The battleship would go on to become one of the most famous ships in history when it was sunk during the Japanese attack on Pearl Harbor in 1941.

3. In 1982, the Humpback Whale National Marine Sanctuary was established. The sanctuary encompasses over 1,400 square miles of water around the Hawaiian Islands and is home to thousands of humpback whales that migrate to the area each year.

4. In 2014, Hawaii became the 16th state to legalize same-sex marriage. The decision was met with both celebration and controversy, but ultimately paved the way for marriage equality across the United States.

5. In 2018, Hawaii experienced a false missile alert that sent the state into a panic. The alert, which was sent out to residents' phones, read: "BALLISTIC MISSILE THREAT INBOUND TO HAWAII. SEEK IMMEDIATE SHELTER. THIS IS NOT A DRILL." It turned out to be a mistake caused by a miscommunication during a routine drill, but it highlighted the need for better emergency communication systems.