This episode was inspired by a historical tour of Philadelphia that the cast experienced.
At the start of the episode, when they compare the portrait George Washington to Meryl Streep, the original script had them comparing him to Glenn Close. They were asked to change it however, since Close was starring in an FX show at the time.
Glenn Howerton (Dennis)'s use of the phrase "Yeeeesssss" whilst speaking in a falsetto voice and dressed in full English, 17th century aristocratic period clothing was inspired by a transvestite character called Emily Howard in the British comedy series Little Britain.