Happy birthday to the Keystone State! The Commonwealth of Pennsylvania celebrated Charter Day on Sunday. Founded in 1681, by William Penn, Pennsylvania was one of the original thirteen U.S. colonies. ...

Pennsylvania’s most famous groundhog — nay, the world’s most famous groundhog — had good cause for celebration the other day.

and the Pennsylvania Historical and Museum Commission is throwing a birthday bash. The Commonwealth marks 344 years in March, when King Charles II gifted William Penn a charter in 1681.