1. On March 29, 1755, the Maryland General Assembly passed an act to establish a public lottery to raise funds for the construction of a bridge across the Patapsco River. The bridge, known as the Elkridge Landing Bridge, would become a critical transportation link between Baltimore and Annapolis.

2. Eastern Maryland was struck by a severe tornado outbreak on March 29, 1965. The outbreak produced more than 15 tornadoes, causing extensive damage and killing six people. The F4 tornado that struck La Plata, Maryland, was particularly devastating, destroying nearly 90% of the town.

3. In 1865, on March 29, John Wilkes Booth, the infamous actor and assassin of President Abraham Lincoln, was spotted by Union troops in Charles County, Maryland, as he attempted to cross the Potomac River into Virginia. He was later cornered and killed by Union soldiers in a barn in Virginia.

4. On March 29, 1935, the Maryland State Police was officially established by an act of the Maryland General Assembly. The state police force was created to serve as a supplemental law enforcement agency, providing assistance to local police departments and enforcing Maryland laws on state highways.

5. The USS Maryland, a battleship that served in both World War I and II, was launched on March 29, 1918, at the Newport News Shipbuilding and Drydock Company in Virginia. The ship was named in honor of the state of Maryland and served as the flagship of the US Pacific Fleet during the attack on Pearl Harbor in 1941.