1. Treaty of Annexation: On March 25, 1898, the Treaty of Annexation was signed between the United States and the Republic of Hawaii, which paved the way for Hawaii to become an official U.S. territory. This marked a significant moment in the history of Hawaii.

2. Prince Jonah Kuhio Kalaniana‘ole Day: March 25 is also celebrated as Prince Jonah Kuhio Kalaniana‘ole Day, a holiday that honors Hawaii's last reigning prince, who was a champion for the Hawaiian people and advocate for Hawaiian rights.

3. Lava Eruptions: Throughout history, March 25 has seen significant lava activity in Hawaii. In 1955, the Kilauea Volcano on the Big Island erupted on this day, creating a new lava field. In 1984, the same volcano erupted once again, marking the start of a new phase of volcanic activity.

4. Pearl Harbor Attack: On March 25, 1942, just a few months after the attack on Pearl Harbor, a Japanese submarine fired several shells at the town of Kahului on the island of Maui, causing minor damage. This attack served as a reminder of the ongoing threat of war and heightened tensions in the Pacific.

5. Modern-day Hawaii: In recent years, March 25 has been a day of celebration for Hawaii's modern-day accomplishments. In 2021, the state announced its goal of achieving 100% renewable energy by 2045, a significant step towards a more sustainable future. The day is also marked by various cultural events, including music festivals and hula performances.