 Complete the following phrase:  The first domestic supplies of high-quality gunpowder were made in the U.S. by E. I. du Pont de Nemours and Company. By the end of 1804, DuPont had sold 39,000 pounds of powder; the following year, sales tripled. The federal government and John Jacob Astors American Fur Company became regular customers. In 1813, the Hagley property, just downstream from the original mills, was purchased, doubling the size and capacity of the mills. Sales grew during the MexicanAmerican War and the 