Crown Prince Ludwig, later to become King Ludwig I, was married to Princess Therese of Saxony-Hildburghausen on 12th October 1810. The citizens of Munich were invited to attend the festivities held on the fields in front of the city gates to celebrate the happy royal event. The fields have been named Theresienwiese ("Theresa's meadow") in honor of the Crown Princess ever since, although the locals have since abbreviated the name simply to the "Wies'n".
Horse races in the presence of the Royal Family marked the close of the event that was celebrated as a festival for the whole of Bavaria. The decision to repeat the horse races in the subsequent year gave rise to the tradition of the Oktoberfest.
The festival was eventually prolonged and moved ahead to September to allow for better weather conditions. Today, the last day of the festival is the first Sunday in October.
It is noteworthy that only beer which is brewed within the city limits of Munich is allowed to be served in this festival. Upon passing this criterion, a beer is designated Oktoberfest Beer. Oktoberfest Beer is a registered Trademark by the Club of Munich Brewers. Large quantities of German beer are consumed, with almost 7 million liters served during the 16 day festival in 2007. Visitors may also enjoy a wide variety of traditional food such as Hendl (chicken), Schweinebraten (roast pork), Schweinshaxe (grilled ham hock), Steckerlfisch (grilled fish on a stick), Würstl (sausages) along with Brezn (Pretzel), Knödel (potato or bread dumplings), Kasspatzn (cheese noodles), Reiberdatschi (potato pancakes), Sauerkraut or Rotkohl/Blaukraut (red cabbage) along with such Bavarian delicacies as Obatzda (a spiced cheese-butter spread) and Weisswurst (a white sausage).