admitted to the Union. With statehood, came the creation of the University of Wisconsin–Madison, which is the state's oldest public university. The creation of this university was set aside in the state charter. Early state economy In 1847, the Mineral Point Tribune reported that the town's furnaces were producing 43,800 pounds (19,900 kg) of lead each day. Lead mining in southwest Wisconsin began to decline after 1848 and 1849 when the combination of less easily accessible lead ore and the California Gold Rush made miners leave the area. The lead mining industry in mining communities such as Mineral Point managed to survive into the 1860s, but the industry was never as prosperous as it was before the decline. By 1850 Wisconsin's population was 305,000. Roughly a third (103,000) were Yankees from New England and western New York state. The second largest group were the Germans, numbering roughly 38,000, followed by 28,000 British immigrants from England, Scotland and Wales. There were roughly 63,000 Wisconsin-born residents of the state. The Yankee migrants would be the dominant political class in Wisconsin for many years. A railroad frenzy swept Wisconsin shortly after it achieved statehood. The first railroad line in the state was opened between Milwaukee and Waukesha in 1851 by the Chicago, Milwaukee, St. Paul and Pacific Railroad. The railroad pushed on, reaching Milton, Wisconsin in 1852, Stoughton, Wisconsin in 1853, and the capital city of Madison in 1854. The company reached its goal of completing a rail line across the state from Lake Michigan to the Mississippi River when the line to Prairie du Chien was completed in 1857. Shortly after this, other railroad companies completed their own tracks, reaching La Crosse in the west and Superior in the north, spurring development in those cities. By the end of the 1850s, railroads crisscrossed the state, enabling the growth of other industries that could now easily ship products to markets across the country. Early state politics Nelson Dewey, the first governor of Wisconsin, was a Democrat. Born in Lebanon, Connecticut, Dewey's father's family had lived in New England since 1633, when their ancestor, Thomas Due, had come to America from Kent County, England. Dewey oversaw the transition from the territorial to the new state government. He encouraged the development of the state's infrastructure, particularly the construction of new roads, railroads, canals, and harbors, as well as the improvement of the Fox and Wisconsin