The following is a timeline of the history of the city of Philadelphia, Pennsylvania.
Philadelphia, commonly referred to as Philly, is the most populous city in the U.S. state of Pennsylvania. Philadelphia is the nation's sixth-most populous city, with a population of 1,603,797 in the 2020 census and is the urban core of the larger Delaware Valley, the nation's seventh-largest and one of the world's largest metropolitan regions consisting of 6.245 million residents in the metropolitan statistical area and 7.366 million residents in its combined statistical area. Philadelphia is known for its extensive contributions to United States history, especially the American Revolution, and served as the nation's capital until 1800. It maintains contemporary influence in business and industry, culture, sports, and music.
University City is the easternmost portion of West Philadelphia, encompassing several Philadelphia universities. It is situated directly across the Schuylkill River from Center City.
The following is a timeline of the history of the city of Chicago, Illinois, United States.
This article is a timeline of the history of the city of Boston, Massachusetts, USA.
This article is a timeline of the history of the city of Cleveland, Ohio, USA.
The following is a timeline of the history of the city of Hartford, Connecticut, USA.
The following is a timeline of the history of the city of Baltimore, Maryland, USA.
The following is a timeline of the history of Lexington, Kentucky, United States.
The following is a timeline of the history of the city of Zagreb, Croatia.
The following is a timeline of the history of the city of Johannesburg, in the Gauteng province in South Africa.
The following is a timeline of the history of Jersey City, New Jersey, United States.
The following is a timeline of the history of the city of Newark, New Jersey, United States.
The following is a timeline of the history of the city of Pittsburgh, Pennsylvania, US.
The following is a timeline of the history of the city of Atlanta, Georgia, United States.
The following is a timeline of the history of the city of San Francisco, California, United States.
The following is a timeline of the history of the city of Oakland, Alameda County, California, United States.
The following is a timeline of the history of the city of Sacramento, California, United States.
The following is a timeline of the history of the city of St. Louis, Missouri, United States.
The following is a general historical timeline of the city of Los Angeles, California in the United States of America.
The following is a timeline of the history of Washington, D.C., the capital city of the United States.
The full story of the "President's House" that never housed a President