The ice cream cone was popularized at the 1904 St. Louis World's Fair as a solution to a supply problem. An ice cream vendor, Arnold Fornachou, ran out of clean glass bowls to serve his scoops. A neighboring vendor, Ernest Hamwi, was selling 'zalabis'—thin, waffle-like Persian pastries. Hamwi rolled one of his warm waffles into a cone shape and gave it to Fornachou, who placed a scoop of ice cream on top. The 'World's Fair Cornucopia' was a massive hit. Before the cone, ice cream was often served in 'penny licks,' small glass cups that customers licked clean and returned, which was a major sanitation concern. The edible cone made ice cream a truly portable and hygienic everyday treat.