1. In 1923, Hawaii's first airport was opened in Honolulu, named John Rodgers Airport after a naval officer and aviator who played a significant role in the development of naval aviation. The airport was later renamed as Honolulu International Airport in 1947.

2. On April 7, 1937, a devastating fire broke out at the Hilo Boarding School, resulting in the death of 26 girls and two staff members. The tragedy led to the establishment of the Keaukaha Elementary School, which serves as a memorial to the victims of the fire.

3. In 1966, the first live telecast from Hawaii was broadcasted by CBS during a baseball game between the Pittsburgh Pirates and the San Francisco Giants. The game was played at Aloha Stadium, which opened earlier that year.

4. On April 7, 1979, the Hawaii State Legislature passed the Hawaii Prepaid Health Care Act, making Hawaii the first state in the United States to require employers to provide health insurance to their employees. The law has since been a model for other states and served as a national debate on the issue of health care.

5. In 2002, Hawaiian Senator Daniel Akaka introduced a bill to make April 7 "National Purple Heart Recognition Day" to honor the brave men and women who have been wounded or killed in the service of the United States. The bill was passed unanimously by the Senate and House of Representatives, and it is now recognized as a national holiday.