- Chats in Adams County
- Chats in Allegheny County
- Chats in Armstrong County
- Chats in Beaver County
- Chats in Bedford County
- Chats in Berks County
- Chats in Blair County
- Chats in Bradford County
- Chats in Bucks County
- Chats in Butler County
- Chats in Cambria County
- Chats in Carbon County
- Chats in Centre County
- Chats in Chester County
- Chats in Clarion County
- Chats in Clearfield County
- Chats in Clinton County
- Chats in Columbia County
- Chats in Crawford County
- Chats in Cumberland County
- Chats in Dauphin County
- Chats in Delaware County
- Chats in Elk County
- Chats in Erie County
- Chats in Fayette County
- Chats in Forest County
- Chats in Franklin County
- Chats in Greene County
- Chats in Huntingdon County
- Chats in Indiana County
- Chats in Jefferson County
- Chats in Lackawanna County
- Chats in Lancaster County
- Chats in Lawrence County
- Chats in Lebanon County
- Chats in Lehigh County
- Chats in Luzerne County
- Chats in Lycoming County
- Chats in McKean County
- Chats in Mercer County
- Chats in Mifflin County
- Chats in Monroe County
- Chats in Montgomery County
- Chats in Montour County
- Chats in Northampton County
- Chats in Northumberland County
- Chats in Perry County
- Chats in Philadelphia County
- Chats in Pike County
- Chats in Schuylkill County
Pennsylvania, officially the Commonwealth of Pennsylvania, is one of the fifty states that make up the United States of America. Its capital is Harrisburg and its most populous city, Philadelphia, famous for being the place where the Declaration of Independence and the Constitution was drawn up. It is located in the Northeast region of the country, Middle Atlantic Division, bounded on the north by New York, on the northeast and east by the Delaware River that separates it from New York and New Jersey respectively, on the south by Maryland, on the southwest by West Virginia, to the west with Ohio and to the northwest with Lake Erie. With 12 702 379 habs.
In 2010 it is the sixth most populous state - behind California, Texas, New York, Florida and Illinois - and with 106.49 inhabitants / km², the ninth most densely populated, behind New Jersey, Rhode Island, Connecticut, Massachusetts, Maryland, Delaware, New York and Florida. It was the second state to be admitted to the Union, on December 12,1787. The two most important cities of the state are Philadelphia, the site of important events during the Revolution and a prosperous metropolitan area in modern times, and Pittsburgh, a port interior located on the banks of three rivers. Pennsylvania is one of the nation's historic states. The Pocono Mountains and the Delaware River provide popular recreational activities. The region of the so-called "Pennsylvania Dutch", in the center-south of the state, is another favorite place for tourists. Actually, they are not Dutch, but of German origin.
Formed by various groups, including religious such as the Amish and Mennonites, they are known as "the flat people", who live without technology or modern comforts. They are called Dutch because of the confusion between the German word Deutsch, which means 'German', with the English word Dutch, meaning 'Dutch'. The USS Pennsylvania ships were named in honor of this state. It has given its name to the Pennsylvanian period in geology. It is also known as «the Keystone State».