1. Following the overthrow of the Hawaiian monarchy in 1893, July 24 was designated as "Restoration Day" by the Provisional Government which was established by the group that had led the coup. The day was meant to celebrate the supposed restoration of Hawaii to law and order, although it was widely criticized by those who recognized it as a cynical attempt to legitimize the illegal takeover of the Hawaiian government.

2. On July 24, 1915, the Mauna Kea Observatory was founded on the Big Island of Hawaii. Built on the summit of the dormant volcano Mauna Kea, the observatory has become a world-renowned center for astronomical research and discovery, with scientists using its advanced telescopes to study everything from distant galaxies to the solar system.

3. In 1958, on July 24, the U.S. Navy's USS Nautilus, the world's first nuclear-powered submarine, successfully completed its historic voyage beneath the North Pole. The event marked a major milestone in U.S. military history and helped to establish the country's leadership in nuclear technology.

4. On July 24, 1990, the United States Congress passed the Hawaiian Sovereignty Restoration Act, a bill that recognized the rights of Native Hawaiians as an indigenous people and called for the creation of a sovereign government to be established through a process of negotiation and cooperation. However, the bill was never enacted into law, and the question of Hawaiian sovereignty continues to be a point of contention for many in Hawaii.

5. On July 24, 2015, a massive hurricane named Hurricane Guillermo passed dangerously close to the Hawaiian islands. Although the storm eventually weakened and shifted its course away from the islands, it still caused significant damage and disruption to residents and visitors alike. The event served as a reminder of the need for preparedness and resilience in the face of natural disasters.