|1633 - 1674
||The Dutch, Swedes, and English established the first European
settlements in Pennsylvania.
||William Penn founded the colony of Pennsylvania after receiving
a grant in 1681 from the king of England. His colony offered religious
freedom, liberal government, and inexpensive land. Quakers established
the city of Philadelphia.
|1700 - 1754
||Welsh, German, and Scotch-Irish groups arrive.
||The French and Indian War started in western Pennsylvania.
|1768 - 1792
||The boundaries between Pennsylvania and the neighboring states
of Connecticut, New York, Viriginia and Maryland are settled.
||The Revolutionary War began. The state constitution was adopted.
||Pennsylvania became the second state to ratify the constitution.
|1790 - 1800
||Philadelphia was the captial of the United States
||Steamboats began travelling between Pittsburgh and New Orleans.
||The railroad-canal line extended from Philadelphia to Pittsburgh.