1. On November 16, 1820, Maine officially became the 23rd state in the United States of America. It was previously a part of Massachusetts until it was separated as a separate state.

2. The Great Fire of 1911 started on November 16 in the city of Bangor. It was one of the worst fires in Maine's history, engulfing over 50 acres of land and destroying over 400 buildings.

3. The first American female tuba soloist, Velvet Brown, was born on November 16, 1923, in Portland, Maine. She was also the first woman to receive a degree in tuba performance.

4. On November 16, 1963, the first ski patrol service in Maine was established at the Sugarloaf Mountain ski resort in Carrabassett Valley. The ski patrol service is responsible for ensuring the safety of skiers and snowboarders on the mountain.

5. The Maine Maritime Academy was founded on November 16, 1941, in Castine, Maine. It is a public college that specializes in maritime education and training, offering degrees in disciplines such as maritime engineering, marine transportation, and marine science.