The Ingersoll area was first settled in the 1790s by families from New England, became famous for homemade cheese production before the War of 1812, and its surrounding County of Oxford was home to the first cheese factories in Canada, starting in 1864. In 1866, through collaboration by the town's businessmen, a giant wheel of cheese weighing was produced at the James Harris Cheese Factory just south of Ingersoll, for promotion of the area's cheese industry. The "Mammoth Cheese" was exhibited at the New York State Fair in Saratoga, NY, and then in England. It was a "Eureka!" accomplishment applauded by the whole country, and in 1867 the Canadian Dairymen's Association was established in Ingersoll, attended by nearly two hundred dairymen from across Canada, followed by annual conventions long thereafter. A booming cheese export industry in the millions of pounds grew from Ingersoll to many parts of the world, and the town's name became synonymous with quality products.