1. In 1869, the United States government established the first US Customs office in Sitka, Alaska on May 10th to regulate trade and commerce at the newly purchased Alaska Territory.

2. May 10, 1914, the Anchorage Daily Times was first published, becoming one of the longest-running newspapers in Alaska's history.

3. On May 10, 1924, President Calvin Coolidge signed the Alaska Native Citizenship Act, granting US citizenship to all native Alaskans, regardless of race or ethnicity.

4. May 10, 1939, marks the date when the Alaska Constitution was adopted at the Constitutional Convention in Fairbanks, paving the way for Alaska to become a state more than two decades later.

5. On May 10, 2018, a 7.0 magnitude earthquake hit Anchorage, Alaska, causing widespread damage and power outages. Despite the destruction, there were no reported deaths or serious injuries.