1. In 1812, during the War of 1812, the British Navy bombarded and burned the town of Hampden, Maine. The attack was part of a larger campaign to disrupt American coastal trade and shipping.

2. On June 6, 1822, the first steamboat arrived in Portland, Maine. The vessel, named the "Portland," was built in New York City and can be considered Maine's first true steamship.

3. The first recorded ascent of Mount Katahdin, Maine's highest peak, was made by Charles Turner and his guide, Joe Polis, on June 6, 1804. The mountain is part of Baxter State Park and draws thousands of visitors each year.

4. In 1889, the first electric trolley car was introduced in Portland, Maine. The car ran from Deering to downtown Portland, and signaled the beginning of public transit in the city.

5. On June 6, 1944, Maine played a significant role in the D-Day invasion of Normandy, France. Many soldiers and sailors from Maine were part of the Allied forces that landed on the beaches of France, and the state's shipyards contributed to the construction of warships and landing craft used in the invasion.