At the 1904 Louisiana Purchase Exposition, in St. Louis, Missouri, a German concessionaire, Antoine Feuchtwanger, served hot sausages called 'frankfurters', after his birthplace, Frankfurt, in Hesse. At first he loaned gloves for his customers to hold his sausages. When many were not returned, he asked his brother, who was a baker, to invent a solution. Thus, the hot dog bun was born.