In which a mysterious World War II inscription marries image and text to create the modern meme, and Ken does not think gangrenous limbs are a meme. Certificate #25622.
In which an ancient linguistic and religious practice becomes a jaunty, ambulatory musical form before falling into decline, and John does not want to see condors in a hospital. Certificate #45133.
In which centuries of sterilization-happy doomsayers fail to predict a game-changing revolution in wheat, and Ken thinks Pakistan wants John to clean out his fridge. Certificate #2037.