produce this type of beer, but the introduction of Bohemian-style beers through the giant brewery Cuauhtémoc would define Mexican beer as pilsner. Globally, one of the best known Mexican beers is Corona, which is the flagship beer of Grupo Modelo. Corona is the best-selling beer produced by Mexico, and the best-selling non-domestic beer in both the U.S., U.K and Australia. It is one of the five most-consumed beers in the world, available in more than 150 countries. It is a lager, and was created in 1925 to celebrate Cervecería Modelo's tenth anniversary. Corona is light straw in color and has a very mild flavor, with little hop bitterness and 4.6% alcohol by volume. It is produced by eight facilities with a total of 4.6 billion litres per year capacity. Corona beer is available in a variety of bottled presentations, ranging from the 250-ml ampolleta (labeled Coronita and just referred as the cuartito (little quarter)) up to the 940-ml Corona Familiar (known as the caguama (sea turtle) or ballena (whale)). Unlike most beers, Corona is bottled in a clear bottle, increasing the opportunity for spoilage from sunlight, which can affect the hop oils in the beer. A draught version also exists, as does canned Corona in some markets. The Corona brand trademark in the United States was initially owned by Puerto Rico's Cerveceria Corona, which eventually sold the trademark rights to Cerveceria Modelo. The oldest and most traditional pilsner in Mexico is Bohemia, which has a significant hops flavor and is quite dense given its clarity. Bohemia has reached the respected distinction of being one of the finest beers of the world. The name comes from the Bohemia region in the Czech Republic that is known for beer. It is one of the longest-aged products from Cervecería Cuauhtémoc, and is the only one to use Lepa Styrian hops. There is a dark version of this brand, which is a Vienna-style beer. In 2009, the company introduced a wheat version of this beer called Bohemia Weizen made with wheat, Mount Hood hops, coriander and orange peel. It is the first wheat beer to be produced by a major beer company in Mexico. Dos Equis was first brewed in Mexico by the German brewer Wilhelm Hasse in 1897. The original name of the beer was "Siglo XX" (20th Century) with the double X standing for the number 20, and it commemorated the arrival