English melancholy and American nervousness.
D001007:Anxiety / Q000266:history*; D003863:Depression / Q000266:history*; D005006:Ethnicity; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D006801:Humans; D008091:Literature; D006113:United Kingdom; D014481:United States