1. On June 6, 1864, the Battle of Piedmont took place in Augusta County, Virginia, which was then part of Maryland. The Union forces, under the leadership of General David Hunter, defeated the Confederate army led by General William E. Jones. This victory allowed Hunter to move on to Lynchburg, Virginia, and helped further secure the Shenandoah Valley for the Union.

2. In 1933, the Maryland State Flower, the Black-Eyed Susan, was officially recognized by the state legislature. The flower is native to Maryland and features prominently in the official state song, "Maryland, My Maryland."

3. On June 6, 1944, also known as D-Day, thousands of Marylanders joined their fellow Americans in storming the beaches of Normandy to help liberate Europe from Nazi occupation during World War II. The bravery and sacrifice of these soldiers helped change the course of the war.

4. In 1968, Robert F. Kennedy won the Maryland primary election for president. Tragically, just moments after celebrating his victory at the Ambassador Hotel in Los Angeles, Kennedy was assassinated, leaving Marylanders and Americans across the country in shock and mourning.

5. On June 6, 2013, the National Museum of Civil War Medicine opened a new exhibit on the medical care during the Battle of Gettysburg. The exhibit, "Facing Two Fronts: The Fight for Civil War Medicine," explores the challenges faced by doctors and nurses during the war, as well as the advances in medical care that emerged as a result of the war's medical needs. The museum is located in Frederick, Maryland, and is dedicated to preserving the history of medicine during the Civil War.