Mustard (condiment) mixed with horseradish and dried for storage, which were then exported to London and other parts of the country, and are even mentioned in William Shakespeare's play "King Henry the Fourth, Part II". The use of mustard as a hot dog condiment is said to have been first seen in the US at the 1904 St. Louis World's Fair, when the bright-yellow French's mustard was introduced by the R.T. French Company. Mustard is most often used at the table as a condiment on cold meats.It is also used as an ingredient in mayonnaise, vinaigrette, marinades, and barbecue sauce. It is
Saint Louis Exposition Saint Louis Exposition The Saint Louis Exposition or St. Louis Expo was a series of annual agricultural and technical fairs held in St. Louis' Fairgrounds Park, from the 1850s to 1902. In 1904, the Louisiana Purchase Exposition, a major World's Fair, was held in St. Louis, Missouri, United States. The annual agricultural/technical exposition was not held in 1903-4, and ceased after the World's Fair. It is easy to confuse memorabilia from the annual St. Louis Expositions with 1904 World's Fair memorabilia. In 1855 a group of St. Louisans founded the "St. Louis Agricultural and Mechanical Association," which held annual fairs