Jülich (in old spellings also known as Guelich or Gülich, cf. Dutch: Gulik, cf. French: Juliers) is nowadays a rather modest town in the district of Düren, in the federal state of North Rhine-Westphalia, in Germany. Jülich is well known as location of a world-famous research centre, the Forschungszentrum Jülich and as shortwave transmission site of Deutsche Welle. As a border region between the competing powers in the Lower Rhine and Meuse areas, the city and the duchy that bore the same name played a historic role from the Middle Ages up to the 17th century.