American Revolution: Lancaster, Pennsylvania becomes the capital of the United States for one day after Congress evacuates Philadelphia.

Lancaster, Pennsylvania

City in Pennsylvania, US

Lancaster is a city in Lancaster County, Pennsylvania, United States, and its county seat. With a population of 58,039 at the 2020 census, it is the eighth-most populous city in the state. It is a core city within South Central Pennsylvania, with 552,984 residents in the…