1. In 1966, a magnitude 7.1 earthquake struck southcentral Alaska, causing significant damage to Anchorage and surrounding communities. The earthquake was one of the largest to occur in the region and resulted in several deaths and injuries.

2. On April 21, 1970, the first Earth Day was celebrated nationwide, including in Alaska. The event helped to raise awareness about environmental issues and inspire greater efforts to protect the planet.

3. In 1985, the Alaska State Legislature passed a law designating the forget-me-not as the state's official flower. The forget-me-not is a common wildflower in Alaska and is known for its vibrant blue color.

4. On April 21, 1999, the Alaska Marine Highway ferry system announced plans to retire the historic vessel Taku. The Taku had served Alaskans for nearly four decades, providing transportation and cargo services to remote communities.

5. In 2017, Alaska's largest newspaper, the Anchorage Daily News, changed its name to the Anchorage Daily News-Media News Group. The move followed the sale of the newspaper's parent company, Alaska Dispatch News, to the California-based Media News Group.