In the mid-1900s, Coatesville was a manufacturing gemstone amid the rolling farmland of Chester County. It was home to Lukens Steel, maker of the steel "trees" that became the first nine stories of New York City's World Trade Center. Retailers such as JC Penney, JJ Newberry, and Woolworth's were large employers serving Coatesville citizens and visitors from neighboring counties. By the mid-1970s, Coatesville's commerce was deeply affected by the influx of shopping malls and big-box stores. Thanks to locally minded developers and community advocates, Coatesville's revival is very real and centers on the arts, boutique retailers, faith-based progress, and handshakes. Coatesville marks its centennial in 2015.