1. Thomas F. Bayard signed a treaty on April 11, 1884, in Alexandria, Virginia, that established the maritime border between the United States and Canada. The treaty is known as the Bayard-Blaine Treaty or the Treaty of Washington.

2. On April 11, 1861, Virginia ratified the Confederate Constitution, becoming the eighth state to join the Confederacy. The decision ultimately led to Virginia becoming one of the most hotly contested states during the Civil War.

3. The Virginia Holocaust Museum, located in Richmond, opened its doors on April 11, 2003. The museum is dedicated to educating people about the Holocaust and the consequences of prejudice and discrimination.

4. In 1963, astronaut Gordon Cooper visited Virginia Beach and gave a speech about his experiences as a member of NASA's Mercury program. Cooper was one of the original seven astronauts and became the first American to spend over 24 hours in space.

5. The Virginia Military Institute was founded on April 11, 1839, in Lexington, Virginia. The school became known for its rigorous military training and produced many notable alumni, including Civil War generals Stonewall Jackson and George Pickett.