In the fourth installment of this new educational series, Noe & Shelly Valladolid look at even more early World’s Fairs. With the focus this time around being on French advances in themed entertainment. In this episode, listeners will learn about: • Why the Exposition Universelle de Paris of 1899 dwarfed all others • How the temporary Eiffel Tower led to the discovery of gamma rays  • The problem with “human zoos” • Why the Tower’s most vehement critic dined there every day • Which themed international buildings served as a precursor for EPCOT’s World Showcase Learn more about your ad choices. Visit megaphone.fm/adchoices