 Originally a railroad stop on the Pennsylvania Railroad, Greensburg quickly became the center of the coal mining industry in the region by the late 19th century when large areas of soft coal were discovered nearby.This contributed to the growth and development of the growing county seat.Many businesses and inns flourished within Downtown Greensburg for many years, and once boasted four major department stores – JCPenney, Royers, Sears and its largest department store, Troutman's.