1. On December 14, 1820, Maine became the 23rd state in the United States. Prior to this, Maine was a territory of Massachusetts.

2. In 1918, the SS Mount Vernon, a troop ship carrying American soldiers from World War I, was severely damaged by a German submarine off the coast of Maine. Despite the damage, the ship was able to make it to port in Halifax, Nova Scotia, with the help of other ships.

3. On December 14, 1963, a massive ice storm hit Maine, causing widespread damage and leaving over 200,000 people without power. The storm also caused flooding and downed power lines, leading to several fatalities.

4. In 1987, the Maine Supreme Court ruled that the state's abortion laws were unconstitutional. This landmark decision recognized a woman's right to choose and paved the way for similar rulings in other states.

5. On December 14, 2013, the Maine Department of Marine Resources issued an emergency closure of all rock crab fishing in the state due to high levels of domoic acid, a toxin that can cause illness in humans. The closure remained in effect for several months, until the levels of domoic acid had decreased to safe levels.