1. Maryland was founded on September 16, 1634: On this day, Leonard Calvert came ashore on present-day St. Clement's Island in Maryland, becoming the first governor of the Maryland colony.

2. The Star-Spangled Banner was written on September 16, 1814: Francis Scott Key wrote the lyrics to the national anthem after witnessing the bombardment of Fort McHenry during the Battle of Baltimore in the War of 1812.

3. The Civil War Battle of Antietam was fought on September 16, 1862: This was the bloodiest day in American history, with more than 23,000 casualties.

4. Babe Ruth hit his 60th home run of the season on September 16, 1927: This broke the previous record of 59 home runs in a single season, which had been set by Ruth in 1921.

5. The Chesapeake Bay Bridge-Tunnel opened on September 16, 1964: The engineering marvel spans 23 miles across the Chesapeake Bay and connects Virginia's Eastern Shore with Virginia Beach.