- March 4, 1681 - Charles II of England grants William Penn a charter for Pennsylvania.
- March 17, 1922 - Philadelphia's first commercial radio station, WIP, is launched by Gimbels.
- March 21, 2004 - Former home of the Philadelphia Eagles and Phillies, Veterans Stadium, is demolished.
- March 26, 1928 - The Philadelphia Museum of Art officially opens on the Benjamin Franklin Parkway.
