1. On January 27, 1778, British explorer Captain James Cook discovered the Hawaiian Islands, landing at Waimea Bay on the island of Kauai. Cook's arrival would have a profound impact on the Hawaiian people, leading to increased contact with the outside world and eventually leading to the nation's annexation by the United States.

2. On January 27, 1893, a group of armed Hawaiians and Americans organized a coup against Queen Liliuokalani, who had attempted to implement a new constitution that would give more power to native Hawaiians and decrease the influence of American and European businessmen. The overthrow of the monarchy paved the way for Hawaii's eventual annexation by the United States.

3. On January 27, 1941, the US Army Air Corps began construction on a military airfield in Kahului, Maui. The airfield, later named Kahului Airport, played a crucial role in World War II as a base for Pacific theater operations.

4. On January 27, 1983, the Kilauea volcano on the Big Island of Hawaii began a series of eruptions that lasted for over three decades. The eruptions transformed the island's landscape, creating new land masses and destroying homes and infrastructure.

5. On January 27, 2018, a false missile alert was sent out to all cell phones in Hawaii, causing widespread panic and confusion. The alert, which warned of an incoming ballistic missile, was later revealed to be a result of human error, highlighting vulnerabilities in Hawaii's emergency alert system.