If Tacitus helped fortify the idea, then it is also true that most sources trace the term waldeinsamkeit to the 18th Century. It was 1797 when the term first appeared in Der Blonde Eckbert (The Fair-Haired Eckbert), a fairy-tale set in the Harz Mountains written by Ludwig Tieck, one of the founding fathers of the zeitgeist-capturing Romantic literary movement. One of the central ideas of the trend was celebrations of nature in harmony with the embrace of isolation and melancholy. In this sense, waldeinsamkeit was born.