The residents.
D005060:Europe; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval; D007396:Internship and Residency / Q000266:history / Q000639:trends*; D014481:United States