1. On May 10, 1775, Fort Ticonderoga was captured by the Green Mountain Boys and Benedict Arnold during the American Revolution. The capture of the fort gave the American rebels control of artillery that would prove crucial in later battles.

2. The University of Maine was founded on May 10, 1865, as the Maine State College of Agriculture and the Mechanic Arts. The university has since expanded to offer a wide range of academic programs, including one of the largest forestry schools in the country.

3. On May 10, 1933, the Civilian Conservation Corps was established in Maine as part of President Franklin D. Roosevelt's New Deal. The program employed young men to work on public lands and infrastructure projects throughout the state, providing jobs and helping to stimulate the local economy during the Great Depression.

4. Margaret Chase Smith, the first woman to be elected to both the U.S. House of Representatives and the U.S. Senate, was born in Skowhegan, Maine on May 10, 1897. She served in Congress from 1940 to 1973, and was known for her independent and often progressive views.

5. On May 10, 1917, Augusta National Golf Club opened in Augusta, Georgia. Although not directly related to Maine history, the annual Masters Tournament held at the club is a major sporting event watched by millions of people around the world, and is often associated with the arrival of spring in Maine.