Things will be lively in Downingtown on September 27 when the Victory Brewing Company, the Downingtown-Thorndale Regional Chamber of Commerce and the Borough of Downingtown team up to present the Ninth Annual Downingtown Fall Fest , which is recognized as one of America's premier equestrian events, began in the early 1970s as a small dressage event at a farm in Glen Mills. In 1975, it moved to its current home at the Devon Horse Show grounds and officially became known as Dressage at Devon.