Factual error: The episode opens with a caption "Miami, 1955." However, as Salvatore Marchese sits in the barber's chair, he picks up as his reading of choice a copy of the National Geographic...the April 1982 edition. (00:02:20)
Factual error: When Blackthorne is on Rodrigues' ship, Rodrigues offers him grog. But grog was only invented in 1740, by British Vice Admiral Edward Vernon, whose nickname was "Old Grog" because of his preference for coats made of grogram cloth.