1939 World's Fair Opens (2) tv-pg Play video Select your TV provider to log in to have full access to videos Select your TV provider See all providers Don't see your TV provider? Learn more You can access this video on the free HISTORY® apps. *You must verify your TV provider towatch this video on the App Your Parental Control settings do not allow you to view this content. 1939 World's Fair Opens (2 min) tv-pg Gov. Herbert Lehman gives an opening speech at the New York World's Fair on April 30, 1939. Cutting-edge technology highlighted by the 63 nations that participated in the fair offered visitors a glimpse of the "World of Tomorrow."