and the county seat of Philadelphia County
, with which it is coterminous. The city is located in the Northeastern United States
along the Delaware
rivers. It is the fifth-most-populous city in the United States
, with a population of 1,526,006 as of the 2010 U.S. Census. Philadelphia is also the commercial, cultural, and educational center of the , home to 6 million people and the country's fifth-largest metropolitan area.
1748 The first Lutheran denomination in North America, the Pennsylvania Ministerium, is founded in Philadelphia, Pennsylvania.
1759 In Philadelphia, Pennsylvania, the first American life insurance company is incorporated.
1774 First Continental Congress assembles in Philadelphia, Pennsylvania.
1774 The first Continental Congress adjourns in Philadelphia, Pennsylvania.
1775 American Revolutionary War: Representatives from the Thirteen Colonies begin the Second Continental Congress in Philadelphia.
1776 The Declaration of Independence is read aloud in Philadelphia, Pennsylvania and the Liberty Bell is rung.
1777 British troops occupy Philadelphia, Pennsylvania during the American Revolution.
1778 American Revolutionary War: British troops abandon Philadelphia, Pennsylvania.
1787 In Philadelphia, Pennsylvania, delegates convene a Constitutional Convention to write a new Constitution for the United States; George Washington presides.
1787 The United States Constitution is signed in Philadelphia, Pennsylvania.