***[[Pennsylvania in the American Civil War]], 1861–1865
***[[Pennsylvania in the American Civil War]], 1861–1865
****[[47th Pennsylvania Infantry Regiment]]
****[[47th Pennsylvania Infantry Regiment]]
****[[Gettysburg Campaign]], June 9 – July 14, 1863
****[[Gettysburg ]], June 9 – July 14, 1863
*****[[Battle of Gettysburg]], July 1–3, 1863
*****[[Battle of Gettysburg]], July 1–3, 1863
*****[[Gettysburg Address]], November 19, 1863
*****[[Gettysburg Address]], November 19, 1863
Overview of and topical guide to Pennsylvania

The following outline is provided as an overview of and topical guide to the United States Commonwealth of Pennsylvania:
The Commonwealth of Pennsylvania is the fifth most populous of the 50 states of the United States. Pennsylvania lies west of the Delaware River in the Mid-Atlantic United States.
King Charles II of England granted William Penn a charter for a Colony of Pennsylvania in 1681. Philadelphia, the capital of the colony, soon rose to become the most populous city of British America. As Britain attempted to tighten its grip on its American colonies, many prominent Pennsylvanians called for greater independence for British America. The upper and lower counties of Pennsylvania (now known as Delaware) joined eleven other British colonies in declaring their autonomy with signing of the United States Declaration of Independence in Philadelphia on July 4, 1776.
The newly independent state chose the moniker “Commonwealth of Pennsylvania” as a token of its prominence and autonomy in the Americas. The American states prevailed in the American War of Independence which concluded with the Treaty of Paris of 1783. The Constitution of the United States was written in convention at Philadelphia in 1787. The State of Delaware and the Commonwealth of Pennsylvania became the first two states to ratify the new Constitution, thus Pennsylvania is ranked as the second state to join the Union.

Geography of Pennsylvania
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Places in Pennsylvania
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Environment of Pennsylvania
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Natural geographic features of Pennsylvania
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Regions of Pennsylvania
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Administrative divisions of Pennsylvania
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Demography of Pennsylvania
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Government and politics of Pennsylvania
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Branches of the government of Pennsylvania
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Executive branch of the government of Pennsylvania
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Legislative branch of the government of Pennsylvania
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Judicial branch of the government of Pennsylvania
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Unified Judicial System of Pennsylvania
Law and order in Pennsylvania
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Military in Pennsylvania
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Local government in Pennsylvania
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Local government in Pennsylvania
History of Pennsylvania
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History of Pennsylvania, by period
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- Indigenous peoples
- Indentured servitude in Pennsylvania
- Netherlands colony of Nieuw-Nederland, 1624–1652
- Swedish colony of Nya Sverige, 1638–1655
- Netherlands province of Nieuw-Nederland, 1652–1664
- English Province of New-York, (1664–1681)–1688
- English Province of Pennsylvania, 1681–1707
- British Colony of Pennsylvania, 1707–1776
- French colony of la Louisiane, 1699–(1754–1763)
- French and Indian War, 1754–1763
- British Indian Reserve in western Pennsylvania, 1763–1783
- American Revolutionary War, April 19, 1775 – September 3, 1783
- Commonwealth of Pennsylvania since 1776
- Whiskey Rebellion, 1790s
- Second State to ratify the Constitution of the United States of America on December 11, 1787
- Erie Triangle purchased 1792
- War of 1812, June 18, 1812 – March 23, 1815
- Mexican–American War, April 25, 1846 – February 2, 1848
- James Buchanan becomes 15th President of the United States on March 4, 1857
- American Civil War, April 12, 1861 – May 13, 1865
History of Pennsylvania, by region
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History of Pennsylvania, by subject
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Culture of Pennsylvania
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The Arts in Pennsylvania
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Sports in Pennsylvania
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Economy and infrastructure of Pennsylvania
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Education in Pennsylvania
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