of Wisconsin farms raised dairy cows and by 1915, Wisconsin had become the leading producer of dairy products in the United States, a position it held until the 1990s. The term America's Dairyland appeared in newspapers as early as 1913 when the state's butterfat production became first in the nation. In 1939 the state legislature enacted a bill to add the slogan to the state's automobile license plates. It continues to be the nation's largest producer of cheese, no longer focusing on the raw material (milk) but rather the value-added products. Because of this, Wisconsin continues to promote itself as "America's Dairyland", Wisconsinites are referred to as cheeseheads in some parts of the country, including Wisconsin, and foam cheesehead hats are associated with Wisconsin and its NFL team, the Green Bay Packers. Brewing The first brewery in Wisconsin was opened in 1835 in Mineral Point by brewer John Phillips. A year later, he opened a second brewery in Elk Grove. In 1840, the first brewery in Milwaukee was opened by Richard G. Owens, William Pawlett, and John Davis, all Welsh immigrants. By 1860, nearly 200 breweries operated in Wisconsin, more than 40 of them in Milwaukee. The huge growth in the brewing industry can be accredited, in part, to the influx of German immigrants to Wisconsin in the 1840s and 1850s. Milwaukee breweries also grew in volume due to the destruction of Chicago's breweries during the great Chicago fire. In the second half of the 19th century, four of the largest breweries in the United States opened in Milwaukee: Miller Brewing Company, Pabst Brewing Company, Valentin Blatz Brewing Company, and Joseph Schlitz Brewing Company. In the 20th century Pabst absorbed Blatz and Schlitz, and moved its brewery and corporate headquarters to California. Miller continues to operate in Milwaukee. The Jacob Leinenkugel Brewing Company opened in Chippewa Falls, Wisconsin in 1867 and continues to operate there to this day. Logging Agriculture was not viable in the densely forested northern and central parts of Wisconsin. Settlers came to this region for logging. The timber industry first set up along the Wisconsin River. Rivers were used to transport lumber from where the wood was being cut, to the sawmills. Sawmills in cities like Wausau and Stevens Point sawed the lumber into boards that were used for construction. The Wolf River also saw considerable logging by industrious Menominee. The Black and Chippewa Rivers formed