Lancaster is a city that lies along the Conestoga River in southeastern Pennsylvania. It is the commercial center of Lancaster County, one of the richest farming regions in the United States and a popular tourist area. The city of Lancaster is also an important manufacturing center.
Amish and Mennonite settlers left Germany and—with members of other religious groups—founded Lancaster County in the early 1700’s. These and other peoples became known as the Pennsylvania Dutch. Lancaster was chartered as a borough in 1742 and incorporated as a city in 1818.
Lancaster was the capital of the United States for one day, Sept. 27, 1777. That day, Congress moved from Philadelphia to York Pennyslvania. Lancaster served as the capital of Pennsylvania from 1799 to 1812.