1. In 1783, Maine's first newspaper, the Falmouth Gazette, was published in Portland. It was founded by Thomas B. Wait, and provided news about the region's business, politics, and events.

2. On August 17, 1862, the 20th Maine Regiment played a crucial role in the Battle of Gaines' Mill during the American Civil War. The regiment, led by Colonel Joshua L. Chamberlain, held the Union's left flank and repelled several Confederate attacks before finally retreating.

3. In 1925, the world's largest sardine cannery at the time, the Stinson Seafood plant in Prospect Harbor, Maine, opened for business. It employed over 1,200 workers and produced over two million cases of canned sardines a year.

4. On August 17, 1969, the Maine State Pier in Portland hosted a concert by the Grateful Dead. It was the band's first visit to Maine and attracted around 3,000 fans.

5. In 2006, the Maine Legislature declared August 17 as Maine Comedy Day in honor of two famous Maine-born comedians: Tim Sample and Bob Marley. The day was meant to recognize the contribution of Maine humor to the state's cultural heritage.