The disappearance of Amelia Earhart is mentioned. In the Trek Universe, her disappearance was solved in The 37's (1995), which takes place in 2371, i.e. 220 years after 'Terra Nova'.
This is the first time the name of Phlox's species is given as Denobulan.
All of the Novan's names are versions of common English names: Nadette was Bernadette, Jamin from Benjamin, Ackary from Zachary, Athan from Nathan.
One of the few times in the Star Trek universe that a bathroom is mentioned when Reed asks if there is a lavatory.