1. On May 25, 1787, the Constitutional Convention began in Philadelphia. This convention led to the creation of the United States Constitution, which is still in use today. Maryland played a major role in the creation of the Constitution, with delegates including James McHenry, Daniel Carroll, and Luther Martin.

2. On May 25, 1862, the first major battle of the Civil War in Maryland took place at the Battle of Winchester. Confederate forces, led by General Stonewall Jackson, defeated Union troops under General Nathaniel Banks. The battle marked a turning point in the war, as Confederate forces began to push north into Maryland.

3. On May 25, 1977, the movie "Star Wars" was released in theaters. The film, directed by Maryland native George Lucas, quickly became a cultural phenomenon and set the standard for modern science fiction cinema. Lucas had attended the University of Southern California's film program, but his roots in Maryland can still be seen in his early work.

4. On May 25, 1981, Maryland Governor Harry Hughes signed a bill that lifted the state's ban on interracial marriage. Before this bill, Maryland had been one of the last states in the country to have such a ban in place. The bill was a major victory for civil rights and helped to usher in a new era of acceptance and diversity.

5. On May 25, 2015, a record rainfall event caused severe flooding in parts of Maryland. Over six inches of rain fell in just a few hours, leading to dangerous flash floods in some areas. The flooding caused millions of dollars in damage and prompted the governor to declare a state of emergency. The event highlighted the importance of preparing for extreme weather events, especially in areas prone to flooding.