1. On August 25, 1917, the United States Navy established the Alaska Communication System (ACS), a network of radio stations across Alaska that allowed communication between remote outposts, airfields, and ships. The network played a critical role in Alaska's defense during World War II.

2. August 25, 1929, marks the day that the Alaska Road Commission began work on the Richardson Highway, a major transportation corridor that connects Valdez on the south coast to Fairbanks in the interior. The highway, completed in 1950, was a major factor in the growth of interior Alaska and has been designated a National Scenic Byway.

3. On August 25, 1958, the U.S. Air Force launched Project Argus, a series of high-altitude nuclear tests in the Earth's magnetic field over the South Atlantic Ocean. Despite concerns about the environmental impact, the tests were successful in providing valuable information about the Earth's magnetic field and its interaction with high-energy particles from the sun.

4. August 25, 1972, marks the day when President Richard Nixon signed the Alaska Native Claims Settlement Act (ANCSA) into law. The act allowed for the transfer of land and money to Alaska Natives to settle long-standing land claims disputes. ANCSA was a historic milestone for Alaska Natives, giving them control over 44 million acres of land and $962.5 million in funding.

5. On August 25, 2005, Hurricane Katrina made landfall in Louisiana, causing widespread devastation to the Gulf Coast region. Although Alaska was not directly affected by the hurricane, many Alaskans played a role in the relief efforts that followed, including members of the Alaska National Guard who were deployed to help with search and rescue operations.