Pennsylvania
»
Adams County
34
»
Allegheny County
251
»
Armstrong County
14
»
Beaver County
21
»
Bedford County
30
»
Berks County
139
»
Blair County
31
»
Bradford County
15
»
Bucks County
165
»
Butler County
12
»
Cambria County
29
»
Carbon County
14
»
Centre County
63
»
Chester County
323
»
Clarion County
4
»
Clearfield County
20
»
Clinton County
10
»
Columbia County
28
»
Crawford County
19
»
Cumberland County
34
»
Dauphin County
74
»
Delaware County
94
»
Elk County
12
»
Erie County
47
»
Fayette County
69
»
Forest County
4
»
Franklin County
64
»
Fulton County
7
»
Greene County
41
»
Huntingdon County
42
»
Indiana County
23
»
Jefferson County
15
»
Juniata County
7
»
Lackawanna County
35
»
Lancaster County
215
»
Lawrence County
9
»
Lebanon County
31
»
Lehigh County
54
»
Luzerne County
36
»
Lycoming County
21
»
McKean County
10
»
Mercer County
15
»
Mifflin County
9
»
Monroe County
20
»
Montgomery County
154
»
Montour County
6
»
Northampton County
59
»
Northumberland County
28
»
Perry County
20
»
Philadelphia County
595
»
Pike County
28
»
Potter County
5
»
Schuylkill County
19
»
Snyder County
6
»
Somerset County
33
»
Sullivan County
8
»
Susquehanna County
8
»
Tioga County
10
»
Union County
18
»
Venango County
19
»
Warren County
11
»
Washington County
100
»
Wayne County
17
»
Westmoreland County
52
»
Wyoming County
5
»
York County
96
»
Adams County
1254
»
Allegheny County
421
»
Armstrong County
20
»
Beaver County
132
»
Bedford County
60
»
Berks County
127
»
Blair County
85
»
Bradford County
117
»
Bucks County
215
»
Butler County
21
»
Cambria County
72
»
Cameron County
8
»
Carbon County
71
»
Centre County
161
»
Chester County
187
»
Clarion County
10
»
Clearfield County
62
»
Clinton County
18
»
Columbia County
49
»
Crawford County
134
»
Cumberland County
315
»
Dauphin County
267
»
Delaware County
165
»
Elk County
6
»
Erie County
199
»
Fayette County
88
»
Forest County
15
»
Franklin County
147
»
Fulton County
17
»
Greene County
18
»
Huntingdon County
40
»
Indiana County
27
»
Jefferson County
13
»
Juniata County
12
»
Lackawanna County
273
»
Lancaster County
238
»
Lawrence County
15
»
Lebanon County
60
»
Lehigh County
75
»
Luzerne County
188
»
Lycoming County
100
»
McKean County
23
»
Mercer County
21
»
Mifflin County
38
»
Monroe County
75
»
Montgomery County
222
»
Montour County
10
»
Northampton County
140
»
Northumberland County
52
»
Perry County
42
»
Philadelphia County
672
»
Pike County
44
»
Potter County
22
»
Schuylkill County
51
»
Snyder County
18
»
Somerset County
73
»
Sullivan County
37
»
Susquehanna County
32
»
Tioga County
34
»
Union County
49
»
Venango County
65
»
Warren County
27
»
Washington County
75
»
Wayne County
62
»
Westmoreland County
91
»
Wyoming County
24
»
York County
222
Brief timeline of the history of the state of Pennsylvania
- 1681: King Charles II grants a land charter to William Penn, establishing the Province of Pennsylvania as a Quaker colony.
- 1682: William Penn arrives in Pennsylvania and founds the city of Philadelphia, which becomes the colony's capital.
- 1701: The Charter of Privileges is enacted, granting religious freedom and political rights to Pennsylvania colonists.
- 1737: Benjamin Franklin establishes the first public lending library in the United States, the Library Company of Philadelphia.
- 1774: The First Continental Congress meets in Philadelphia in response to growing tensions between the American colonies and Great Britain.
- 1776: The Declaration of Independence is signed in Philadelphia, proclaiming the independence of the United States.
- 1787: The United States Constitution is drafted and signed in Philadelphia during the Constitutional Convention.
- Early 19th century: Pennsylvania becomes a leading industrial and manufacturing center, with a focus on iron, steel, and coal production.
- 1829: The Pennsylvania Canal, connecting Philadelphia with Pittsburgh, opens, facilitating transportation and economic growth.
- 1837: The Commonwealth of Pennsylvania begins construction of the Pennsylvania Railroad, one of the largest and most successful railroad systems in the United States.
- Late 19th century: Immigrants from Europe, particularly Ireland, Germany, and Eastern Europe, arrive in Pennsylvania in large numbers, contributing to its diverse population.
- 1892: Ellis Island in New York becomes the primary immigration station for many newcomers to the United States, including those arriving in Pennsylvania.
- 1903: The Wright brothers, Orville and Wilbur, conduct their first public flight demonstration near Philadelphia.
- Mid-20th century: Pennsylvania plays a significant role in the steel industry, with cities like Pittsburgh becoming known as the "Steel City."
- 1979: The Three Mile Island nuclear accident occurs near Harrisburg, causing a partial meltdown and leading to increased awareness of nuclear safety.
- Today, Pennsylvania is known for its historical significance, vibrant cities, including Philadelphia and Pittsburgh, and its diverse landscapes, including the Appalachian Mountains and Amish Country.
Pennsylvania holds a rich and significant history. It played a crucial role in the early years of the United States, serving as the birthplace of the nation's independence. Philadelphia, the state's largest city, was home to the signing of the Declaration of Independence and the Constitutional Convention. Pennsylvania also played a significant role in the American Revolution and witnessed key battles like Gettysburg during the Civil War. Today, visitors can explore historic sites, such as Independence Hall and the Liberty Bell, that reflect Pennsylvania's important place in American history.