Nicolaes Tulp depicted in the painting can be dated to 16 January 1632; the Amsterdam Guild of Surgeons, of which Tulp was official City Anatomist, permitted only one public dissection a year and the body would have to be that of an executed criminal. The criminal is identified as the robber Aris Kindt. Rembrandt would later make a painting of Tulp's successor in 1656 "The Anatomy Lesson of Dr Jan Deijman". Since the painting of Tulp's predecessor in 1619, "The Osteology Lesson of Dr Sebastiaen Egbertsz" was a group portrait around a skeleton, it is clear that the subject of a dead
The Doctor (Doctor Who) episode "The Name of the Doctor". With this vehicle, the Doctor explores the universe with usually human companions who serve as audience surrogate characters to ask questions which allow the Doctor to provide relevant exposition. "Doctor" is a self-selected alias. In later episodes of the revived programme, specifically under show runner Steven Moffat, the story arcs surrounding events in the Doctor's future implied serious consequences in the event of the Doctor's true name being spoken, the nature of these finally being revealed in "The Time of the Doctor". Spin-off media offer the explanation that the Doctor's true name is unpronounceable