Ichabod says that Paul Revere was a dentist as well as a silversmith, however he has previously balked at the claim of Revere being a dentist, calling it apocryphal and retorting that as a silversmith, his were the last hands you would want in your mouth.
Icabod says the Declaration of Independence was actually ratified July 2nd 1776, this is incorrect, while the vote to declare independence was passed by the Continental Congress on July 2nd it was ratified on July 4th.
When looking through Crane's texts from Zoe at the dentist's office, the texts are labeled as having started "Today 11:45 AM" even though the current time (visible at the top of the phone) is only 11:42 AM.