1. On June 10, 1846, the first railroad in Maine was officially opened. The Portland, Saco and Portsmouth Railroad began operations, connecting Maine to New Hampshire and Massachusetts via a rail link.

2. In 1922, the first airplane landed on Cadillac Mountain in Acadia National Park on June 10. The successful flight was made by two aviation enthusiasts, Horace Greely Nickerson and Henry Osterback.

3. Maine's first female senator, Olympia Snowe, was born on June 10, 1947. She represented Maine in the U.S. Senate from 1995 to 2013, after serving in the U.S. House of Representatives and the Maine State Legislature.

4. On June 10, 1835, the Maine State Prison opened in Thomaston. It was the state's first prison and housed both men and women until a separate facility for women was built in 1923.

5. One of Maine's most beloved authors, Richard Russo, was born on June 10, 1949. He is known for his novels set in small-town Maine, such as "Empire Falls," which won the Pulitzer Prize for Fiction in 2002.