1. In 1865, the Thirteenth Amendment to the United States Constitution was ratified, officially abolishing slavery in Maryland and across the nation. This momentous event marked the end of a long struggle for African Americans who fought for their freedom and civil rights.

2. On January 31, 1936, the world-famous civil rights leader and activist, Reverend Jesse Jackson was born in Greenville, South Carolina. Reverend Jackson is known for his tireless work in promoting racial and social justice and is a revered figure in Maryland's history.

3. January 31, 1918, marks a significant moment in the history of the United States Army, as the nation's first ordnance training camp was established at Aberdeen Proving Ground. This facility played a critical role in the development of weapons, ammunition, and other military technology, which helped the Allied Forces turn the tide of World War I.

4. In 1695, the legislative assembly of Maryland passed an act establishing the first public school system in the state. This act would become the foundation for Maryland's modern-day educational system, which now boasts some of the most prestigious universities in the nation.

5. January 31, 2000, saw the opening of one of Maryland's most iconic landmarks, the Baltimore Ravens' M&T Bank Stadium. This state-of-the-art facility has hosted countless memorable moments in the history of football, including the Ravens' Super Bowl victory in 2013.