On the episode "Lafayette Arrives", the Marquis de Lafayette's hair (or powdered wig) is gray, but in this episode, it is a very light yellow.
Steuben: I'm sorry. English is my third language.
HISTORICAL CONTENT: George Washington and his Continental Army endure a horrible winter at Valley Forge. Baron von Stueben writes a training program for the army and helps Washington's troops become a professional fighting unit. Lafayette proves his loyalty to Washington as The Conway Cabal, a plot to oust George Washington as commander of the army, fails.