On Saturday, August 9, the Columbia Historic Preservation Society sponsored a tour of the route of the former Underground Railroad, the path to freedom for 19th-century slaves. The tour started and ended in Columbia, with stops at the Lancaster County Convention Center, Lancaster's Shreiner-Concord Cemetery, the Thaddeus Stevens College of Technology, and the Underground Railroad Visitors Center in Christiana. The term "Underground Railroad" is said to have originated in Columbia, and there is strong historical evidence to support this claim. In the mid-19th century, Columbia was a thriving transportation hub, with a bridge, a ferry, and a canal system, as well as a secret network of safe houses, making it a recognizable and desirable stopover on an escaped slave's route to freedom. In his book The History of the Underground Railroad in Chester and the Neighboring Counties (1883), R.C. Smedley states the following: "In the early part of concer...