1. The first recorded performance of a Shakespearean play in Maine took place on April 4, 1799, when a group of actors presented "The Tempest" in Portland.

2. On April 4, 1820, Maine became a state, officially separating from Massachusetts and becoming the 23rd state in the United States.

3. In 1865, General Robert E. Lee surrendered to General Ulysses S. Grant at Appomattox, Virginia, effectively ending the American Civil War. This event took place on April 4, and was celebrated in Maine and across the country as the end of a long and bloody conflict.

4. The Maine State Guard was officially established on April 4, 1941, as a division of the Maine National Guard tasked with protecting the state's population and resources in times of emergency.

5. On April 4, 1970, the Bowdoin College Outing Club sponsored the first-ever running of the Boston Marathon in Maine, which took place on a loop between Brunswick and Bath. The event was a success, and paved the way for future marathons in the state and region.