1. In 1812, the United States officially declared war on Great Britain. Maine, being a border state, played a significant role in the war effort as it was the site of several important battles.

2. On June 18, 1877, the first train arrived in Calais, Maine, via the Canadian Pacific Railroad. This marked a significant milestone in Maine's transportation history as it opened up new opportunities for industry and commerce.

3. In 1923, the Central Maine Power Company began construction on the Caratunk Dam, which would eventually become the largest hydroelectric facility in the state. Today, the Caratunk Dam remains an important source of electricity for the region.

4. On June 18, 1953, Maine native Edwin "Buzz" Aldrin Jr. became the second person to walk on the moon during the Apollo 11 mission. Aldrin, who grew up in Montclair, New Jersey, spent much of his childhood in Maine where his grandparents owned a summer home.

5. In 1982, Maine held its first-ever lobster festival in Rockland. The festival, which has since become an annual tradition, celebrates Maine's rich fishing heritage and is a major tourist attraction for the state.