Iced tea on a hot summer day. What could possibly go wrong?

Iced tea, legend has it, first saw the light of day at the 1904 St. Louis World’s Fair—a 184-day spectacle that drew over 20 million visitors and featured such exhibits as the world’s largest locomotive, fourteen baby incubators (complete with babies), 140 automobiles, and a life-size elephant made entirely of almonds.

For food, attendees had their pick of 35 restaurants, among them Faust’s Tyrolean Alps Restaurant, which served caviar sandwiches, and the Anthracite Coal Mine Restaurant, where waiters dressed as coal miners seated customers at tables lit by miner’s lamps. If strapped, fairgoers could pick up free snacks at the Minnesota State Building, which daily served free lunches of baked beans,