1. In 1933, the Saco-Lowell Shops, a historic textile mill complex in Biddeford, Maine, was added to the National Register of Historic Places. The complex was once one of the largest cotton textile mills in the world and played a significant role in the state's industrial history.

2. On August 4, 1947, a magnitude 5.1 earthquake struck eastern Maine, causing minor damage to buildings and generating a small local tsunami in the Bay of Fundy. The earthquake was one of the largest to occur in Maine in the 20th century.

3. In 1976, the Maine State Legislature ratified the 21st amendment to the U.S. Constitution, which repealed the federal prohibition of alcohol. The amendment was ratified more than 40 years after its adoption by the requisite number of states, due to delays in Maine and other states that had opposed the repeal.

4. On August 4, 1993, the Portland Museum of Art announced the acquisition of a major new work by Maine artist Winslow Homer, titled "Three Boys on the Shore". The painting, which depicts three young boys playing on a rock-strewn beach, is now one of the museum's most popular exhibits.

5. In 2010, a pair of Maine fishermen made headlines after catching a rare blue lobster off the coast of Owls Head. The lobster, which has a genetic condition that causes its shell to turn blue, was estimated to be about six years old and was ultimately donated to the Gulf of Maine Research Institute for study.