Around the world Oktoberfest is celebrated for 16 days in late September to the beginning of October. The festival that is held in Munich, Germany is the country's biggest fair. The first Oktoberfest was celebrated in 1810 to commemorate Bavarian Crown Prince Ludwig's marriage to Princess Therese von Sachsen-Hildburghausen. The original celebration was non-alcoholic but now Oktoberfest is synonymous with German beer and about 2 million gallons are served every year. So fill your stein and say "Prost!"