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 the 1939 St. Louis smog, which blackened the sky and lasted for three weeks. A ban on burning low-quality coal solved the problem in December 1939, and the addition of natural gas for heating assisted homeowners in making the transition to cleaner fuels by the late 1940s. During the 1904 World's Fair, ballooning was demonstrated as a viable means of transportation; in October 1907, the second Gordon Bennett Cup, an international balloon racing event, was held in the city. The first airplane flight occurred in late 1909, and by the next year, an airfield had been established in nearby Kinloch,