1. The Battle of Big Bethel took place on June 3, 1861, in Virginia. Maryland was deeply affected by this battle, as many soldiers from the state fought on both sides. It was one of the first major battles of the American Civil War.

2. On June 3, 1888, the Baltimore City College, the third oldest public high school in the United States, was established. It has educated many notable figures in Maryland history, including Thurgood Marshall, Nancy Pelosi, and David Simon.

3. Maryland native and baseball legend Babe Ruth hit his first major league home run on June 3, 1915, while playing for the Boston Red Sox. Ruth would go on to shatter multiple baseball records and become one of the most iconic athletes of all time.

4. Maryland Governor Larry Hogan declared June 3, 2020, as a day of Prayer and Peaceful Reflection to honor the life of George Floyd and acknowledge the protests that were taking place across the state and country following his death.

5. On June 3, 2019, the Maryland Transit Administration launched a new bus line called the BaltimoreLink. It was a major overhaul of the city's bus system, aimed at improving efficiency and reliability for the many residents who rely on public transportation to get around.