1. On April 23, 1915, the Alaska Road Commission was established by the U.S. Congress. This organization was responsible for building and maintaining roads and other infrastructure throughout the state.

2. In 1979, the Alaska State Legislature passed the Oil and Gas Conservation Act, which created the Alaska Oil and Gas Conservation Commission. This agency has played an important role in regulating the state's oil and gas industry.

3. April 23, 2008 marked the beginning of the Copper River salmon season in Alaska. This event is eagerly anticipated by fishermen and seafood lovers alike, as the Copper River is famous for its rich and flavorful salmon.

4. On April 23, 2010, the Exxon Valdez oil spill settlement was finally paid out to Alaskans who were impacted by the disaster. The spill, which occurred in 1989, was one of the worst environmental disasters in U.S. history.

5. April 23, 2015 was the day that an unusual weather event occurred in Alaska - a severe ice jam occurred on the Yukon River. This led to flooding and other disruptions in the surrounding communities, and required an extensive response effort from local officials.