1. On November 18, 1864, the Battle of Cedar Creek took place in Virginia during the American Civil War. Many Maryland soldiers fought in this battle, including those serving in the 1st and 2nd Maryland Infantry regiments.

2. On November 18, 1871, Maryland became the first state to adopt a statewide flammability standard for clothing. The law was passed after a series of deadly fires caused by flammable clothing materials.

3. On November 18, 1929, the Baltimore Museum of Art opened its doors to the public. The museum is home to more than 95,000 works of art, including the largest holding of works by Henri Matisse in the world.

4. On November 18, 1966, the Maryland State Board of Education adopted a policy prohibiting discrimination in public schools on the basis of race, creed, color, gender, or national origin. This was a major step forward in the civil rights movement in Maryland.

5. On November 18, 2012, the Baltimore Ravens defeated the Oakland Raiders 55-20 in a National Football League game. This was the largest point total in Ravens' history and included five touchdown passes from quarterback Joe Flacco.