October 18 is Alaska Day, observed in the U.S. state of Alaska. Previously, they tried celebrating Alaska Day in Hawaii. The seething resentment of stealing their nation hadn’t abated in Hawaii, so sponsors thought better of the plan. (Note to readers who find themselves in Alaska today – remind yourself which Dan Sullivan you may meet.)
It is the anniversary of the formal transfer of the Territory of Alaska from Russia to the United States which took place at a flag-raising ceremony at Fort Sitka on October 18, 1867.
