1. In 1708, the first formal protest against slavery in the United States took place in Germantown, Maryland. A group of Quakers drafted a resolution denouncing slavery and presented it to their monthly meeting for approval. The resolution was published in the Pennsylvania Gazette on February 18, 1759.

2. On February 28, 1784, the Maryland General Assembly ratified the Treaty of Paris, officially ending the American Revolution. The Treaty recognized the United States as an independent nation and established its borders with Canada to the north, British West Florida to the south, and the Mississippi River to the west.

3. In 1827, the Baltimore & Ohio Railroad was chartered by the Maryland General Assembly. The B&O was the first railroad in the United States to offer regular passenger service and was a major transportation hub for the country's growing economy.

4. February 28, 1904, marked the start of the Great Baltimore Fire, which destroyed over 1,500 buildings in the city's downtown area. The fire burned for over 30 hours and left over 35,000 people homeless. The disaster prompted major changes in the city's building codes and fire department procedures.

5. On February 28, 1962, Maryland Governor J. Millard Tawes declared a state of emergency due to an impending storm. The storm, known as the Ash Wednesday Storm, brought record-breaking tidal surges and heavy snowfall to the area. It caused over $200 million in damages and claimed over 40 lives along the mid-Atlantic coast.