1. Attack on Pearl Harbor: December 7, 1941, marks the infamous attack on Pearl Harbor by the Japanese military. This surprise military strike against the United States naval base in Hawaii resulted in the deaths of over 2,400 Americans, and the destruction of many military vessels.

2. Pearl Harbor National Memorial: In honor of the attack on Pearl Harbor, the Pearl Harbor National Memorial was established in 1964. The memorial consists of multiple sites, including the USS Arizona Memorial, the Battleship Missouri Memorial, and the Pacific Aviation Museum. It attracts over 1.8 million visitors per year.

3. Statehood Day: December 7 is also celebrated as Statehood Day in Hawaii. On this day in 1959, Hawaii was admitted as the 50th state in the United States. This historic event marked the end of Hawaii's territorial status and the beginning of its new status as a state.

4. The Battle of Nuʻuanu: On December 7, 1795, the Battle of Nuʻuanu took place on the island of Oahu. This battle was fought between the forces of King Kamehameha I and the Oahuans, which resulted in the unification of the Hawaiian Islands under one ruler.

5. Queen Liliuokalani: December 7 marks the birthday of Hawaiian Queen Liliuokalani, who reigned as Queen of Hawaii from 1891 to 1893. She was the last monarch of Hawaii before the United States annexed the islands. Queen Liliuokalani was a revered figure in Hawaiian culture and is remembered for her musical talent, political leadership, and dedication to preserving Hawaiian traditions.