sentences:  Another 1862 law created the Department of Agriculture to aid farming in the United States.The Pacific Railway Acts of 1862 and 1864 granted federal support for the construction of the United States' First Transcontinental Railroad, which was completed in 1869.In June 1864, Lincoln approved the Yosemite Grant enacted by Congress, which provided unprecedented federal protection for the area now known as Yosemite National Park.