Oktoberfest is not just some big party in Munich, Germany; it is a tradition steeped in rich history and lore. It’s also a really big party held during the last two weeks of September and the first two weeks of October for the 6 million people who attend each year. It’s the most famous event in Germany, and it just might be the biggest fair in the world. The original Oktoberfest on October 18, 1810 was the celebration of the marriage of Crown Prince Ludwig and the Princess Therese of Saxe-Hildburghausen.