1. On October 27, 1867, the U.S. flag was raised in Sitka, Alaska, marking the official transfer of ownership from Russia to the United States in what became known as the Alaska Purchase.

2. In 1904, the Alaska-Yukon-Pacific Exposition opened in Seattle, Washington, showcasing the resources and cultures of Alaska and the Yukon.

3. On October 27, 1978, the oil tanker SS Manhattan completed its journey through the Northwest Passage, becoming the first commercial vessel to navigate the Arctic route.

4. In 1985, a magnitude 7.1 earthquake struck the Aleutian Islands, causing significant damage to the town of Atka.

5. On October 27, 2020, the Alaska Department of Health and Social Services reported a record-breaking 526 new cases of COVID-19 in the state, highlighting the ongoing impact of the pandemic on Alaska and its residents.