The Anatomy Lesson of Dr. Nicolaes Tulp his forename (in its original form) as opposed to the monogramme "RHL" (Rembrandt Harmenszoon of Leiden), and is thus a sign of his growing artistic confidence. The event can be dated to 31 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. Anatomy lessons were a social event in the 17th century, taking place in lecture rooms that were actual theatres, with students, colleagues and the general public being permitted to attend on payment of an
The Doctor (Doctor Who) 2003, Tom Baker mentioned that the Doctor is called so because he is "a doctor of time and relative dimension in space". Apart from being called a doctor of the TARDIS, the Doctor has been referred to as a "doctor of time travel." The revived programme establishes that Time Lords invent their own names. In "The Sound of Drums" (2007), the Tenth Doctor remarks to the Master that they both chose their names, with the Master calling him sanctimonious for identifying himself as "the man who makes people better." "The Name of the Doctor" and "The Day of the Doctor"