Take Me Home to the Keystone state of Pennsylvania. Now in state flag colors with their state's iconic keystone embroidered on the back. Known as the Birthplace of Liberty as it was here that the Declaration of Independence, U.S. Constitution, and the Gettysburg Address were written. MEASURES APPROXIMATELY 8" X 5.5" X 2" Nickname: The Keystone State Statehood: 1787; 2nd state Population: 12,783,754 Capital: Harrisburg Biggest City: Philadelphia Abbreviation: PA State Bird: Ruffed Grouse State Flower: Mountain Laurel State Tree: Eastern Hemlock