World's Fairs: a Global History of Expositions This link opens in a new windowExplore the phenomenon of world's fairs from London's Crystal Palace in 1851 to North American exhibitions and twenty-first century expos. Through official records, monographs, publicity, artwork, artifacts and other primary sources, this resource provides access to digitized materials from multiple archives. Includes extensive documents about the 1904 Louisiana Purchase Exposition / St. Louis World Fair. See Fair Directory for full list of 200+ events included, from 1821 - 2017.