1. In 1873, the USS Tuscarora arrived in Honolulu on March 23, after successfully completing the first transpacific cable laying expedition. The cable connected the United States to Asia, revolutionizing communication between the continents.

2. On March 23, 1887, King Kalakaua signed the "Bayonet Constitution," which stripped native Hawaiians of many of their rights and gave more power to foreign businessmen. This event ultimately led to the overthrow of the Hawaiian monarchy in 1893.

3. March 23, 1947 marked the opening of the landmark Royal Hawaiian hotel in Waikiki. Known as the "Pink Palace," the hotel has become an iconic part of Hawaii's tourism industry.

4. In 1965, March 23 saw the founding of the University of Hawaii's Pacific Oceanic Fisheries Investigations (POFI), which later became the Joint Institute for Marine and Atmospheric Research (JIMAR). JIMAR is a premier research institute focused on marine and atmospheric sciences and operates in partnership with the National Oceanic and Atmospheric Administration (NOAA).

5. On March 23, 1998, Hawaii's Supreme Court ruled that same-sex couples were entitled to the same rights and benefits as opposite-sex couples. This was a landmark decision that has been cited by other courts in subsequent cases regarding marriage equality.