The Friedrich Schiller was an express train in Germany, initially linking Düsseldorf and Stuttgart. The train was named after the philosopher and playwright Friedrich Schiller. In 1971, the Deutsche Bundesbahn started an inner German network of first-class-only InterCity services modeled after the TEE criteria, but more frequent than the TEE, one train per hour instead of one train a day. At 1 October 1972, the Friedrich Schiller was added to this network, initially linking Stuttgart and Düsseldorf. The route was extended northward to Dortmund on 1 June 1975. During the 1970s, the introduction of second-class coaches in the Intercities was proposed and tested on some routes, resulting in the IC79 project. One of these "second-class tests" was carried out with the Friedrich Schiller in the