1. On September 12, 1814, a British fleet entered Chesapeake Bay and began their attack on Fort McHenry. This attack would eventually inspire Francis Scott Key to write "The Star-Spangled Banner," which became the national anthem of the United States.

2. In 1980, the Baltimore Colts opened their season on September 12 against the Denver Broncos. It would be the last game the Colts played in Baltimore before moving to Indianapolis in 1984.

3. On September 12, 1977, Maryland native and actor Burt Reynolds made an appearance at the Maryland State Fair. Reynolds reportedly signed autographs for fans and posed for pictures with attendees.

4. In 2003, the Baltimore Orioles played their final game at Memorial Stadium on September 12. The Orioles defeated the New York Yankees 5-4, with Jorge Julio earning the win in relief.

5. On September 12, 2008, the Maryland Transit Administration opened the new westbound entrance to the Charles Center Metro Subway Station in Baltimore. The station had been closed for several months for renovations, and the new entrance provided improved accessibility for commuters.