1. March 31, 1877: Liholiho, also known as King Kalakaua, becomes the first monarch to circumnavigate the globe, beginning his journey on March 31st, 1877. His travels helped to promote Hawaii and its culture around the world.

2. March 31, 1924: Haiku Stairs, also known as Stairway to Heaven, was built by the US Navy as a radio transmission tower. The stairs are located on the island of Oahu and were later opened to the public as a hiking trail, but have since been closed due to safety concerns.

3. March 31, 1943: The Battle of Kolombangara takes place during World War II. US and Japanese forces engaged in a naval battle in the Solomon Islands, resulting in a Japanese victory. This battle was significant in the context of the Pacific campaign during the war.

4. March 31, 1975: The Richard Nixon Presidential Library and Museum was built in Yorba Linda, California. This library contains exhibits and artifacts related to the Nixon presidency, including his resignation speech and the Watergate tapes.

5. March 31, 1992: Hawaii becomes the 50th state to implement a mandatory seat belt law. This law requires all occupants of a vehicle to wear seat belts while driving. The law has been credited with saving many lives in Hawaii since its implementation.