I used to live in Germany. Trust me, it's Oktoberfest. Die Wiesen refers to the fest grounds in Munich, or more generally to various festivals in the area, all of which use the term "die Wiesen" if you are local. Yes, in Munich it can colloquially be used to refer to Oktoberfest, in the same...
A lot of people are under the misconception that Märzen beer was brewed specifically for Oktoberfest, when in fact, it was drunk at Oktoberfest because that is the only beer they had available :)
(Oktoberfest, as a festival, only existing from 1810)
Another little known fact... Oktoberfest in...
Wow, talk about regurgitating an old thread! I thought this was such common knowledge I can't believe it is even being discussed.
The law being referred to in this thread is a Bavarian law from 1553 (more than 300 years prior to German unification). The famous Bavarian 1516 Rheinheitsgebot...