1) On April 28, 1814, the burning of Washington D.C. by British troops during the War of 1812 extended to nearby Bladensburg, Maryland where a battle was fought and the American forces suffered a decisive loss.

2) In 1851, the Maryland Institute for the Promotion of the Mechanic Arts was established in Baltimore, Maryland. It aimed to promote technological education and encourage the application of science to industry.

3) On April 28, 1865, John Wilkes Booth, the assassin of President Abraham Lincoln, was cornered and killed by Union soldiers in a barn in Port Royal, Virginia. Booth was a native of Bel Air, Maryland.

4) The Chesapeake Bay Bridge, one of the longest over-water bridges in the world, was opened to traffic on April 28, 1952. It connects the eastern and western shores of Maryland over the Chesapeake Bay.

5) In 2015, Baltimore, Maryland experienced violent protests and riots in response to the death of Freddie Gray, a young Black man who died while in police custody. The unrest lasted for several days and resulted in injuries, property damage, and arrests.