1. Hawaiian Flag Day - June 2 is celebrated as Hawaiian Flag Day, which honors the adoption of the Hawaiian flag by King Kamehameha I in 1816. The flag features eight stripes of alternating red, white, and blue, representing the eight islands of Hawaii.

2. Birth of Queen Liliuokalani - On June 2, 1838, Liliuokalani, the last reigning monarch of the Kingdom of Hawaii, was born in Honolulu. She served as queen from 1891 until 1893, when she was overthrown in a coup led by American businessmen.

3. Pearl Harbor attack - On June 2, 1942, the Battle of Midway began, which was a pivotal naval battle in the Pacific Theater of World War II. The Japanese sought to invade Midway Island, but the United States was able to intercept their plans and launch a surprise attack. The battle lasted until June 7 and was a decisive victory for the U.S.

4. Kona coffee recognized - On June 2, 1997, Kona coffee was recognized as a distinctive regional product by the European Commission. The coffee, which is grown on the slopes of Mauna Loa on the Big Island, is known for its rich flavor and is highly prized by coffee aficionados.

5. Great Kau earthquake - On June 2, 1868, an earthquake with an estimated magnitude of 7.9 struck the island of Hawaii. The quake, known as the Great Kau earthquake, caused widespread damage and triggered a tsunami that devastated coastal communities. Despite the severity of the earthquake, there were no reported fatalities.