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
History of St. Louis (1866–1904) by E.M. Statler (who used profits from the facility to found Statler Hotels). While the fair was under construction, it became clear that the western half of the park would not suffice for the size of the fair, so company directors leased the campus of Washington University in St. Louis and several other parcels of land, bringing the total fairgrounds to an area of 1,272 acres. Streetcar and rail service to the area was improved, and a new filtration system was implemented to improve the clarity of the St. Louis water supply. Other infrastructure improvements made for the fair included