1. The first edition of The Portland Press Herald was published on May 6, 1862, marking the beginning of a prominent daily newspaper in Maine that still exists today.

2. On May 6, 1884, the iconic Portland Observatory opened for its 53rd and final season of operation. It was one of the last maritime signal towers of its kind in the United States and is now a historic monument.

3. May 6, 1915, saw the sinking of the Lusitania off the coast of Ireland, which caused outrage and anti-German sentiment in Maine and across the country. The disaster was a major event leading up to the United States' entry into World War I.

4. In 1942, the USS Wahoo, a submarine mostly crewed by Mainers, sank five Japanese warships in a single day. This May 6 victory was a significant achievement in the Pacific theater of World War II.

5. In 1977, the Maine State Legislature designated the black-capped chickadee as the official state bird. This small, friendly bird is commonly found throughout Maine and is a beloved symbol of the state's natural beauty.