sentences:  Originally developed for agriculture, this area became industrialized and urbanized in the area of East St. Louis, Illinois, a city that developed on the east side of the Mississippi River from St. Louis, Missouri.It was always strongly influenced by actions of businessmen from St. Louis, who were initially French Creole fur traders with western trading networks.In the 19th century, industrialists from St. Louis put coal plants and other heavy industry on the east side of the river, developing East St. Louis.