The title of each episode of Season 3 is a quote from Mary Shelley's novel 'Frankenstein,'' published in 1818. The full quote from which this title is excerpted is - "The world was to me a secret which I desired to divine." Midway in this episode, Jerry is reading from 'Frankenstein' while he and Matthew eat their lunch.
Anne is given 50 cents for her birthday. This is roughly the equivalent to $10 in today's money (2020s).