Significant to the County, gypsum was discovered in 1793 on the east bank of the Grand River in what became Paris during a survey for the British Home Department. By late 1794 a road had been built from what is now Dundas, Ontario to Paris, called The Governor's Road (now Dundas St. in Paris). Records from 1846 indicate that the settlement (now Paris), in a hilly area called Oak Plains, was divided into the upper town and the lower town. In addition to successful farmers in the area, the community of 1000 people (Americans, Scottish, English, and Irish) was thriving. Manufacturing had already begun, with industries powered by the river. A great deal of plaster was being exported and there were three mills, a tannery, a woolen factory, a foundry, and numerous tradesmen. Five churches had been built; the post office was receiving mail three times a week. The village was incorporated in 1850 with Hiram "Boss" Capron as the first Reeve. It was incorporated as a town in 1856 with H. Finlayson as the first mayor.