Also known as Weiberfastnacht, this unofficial holiday marks the beginning of the street carnival celebrations in a large part of Germany. Traditionally, the merrymaking starts at 11:11 on the Thursday before Ash Wednesday. It may be hard to find anyone at work after that time on Weiberfastnacht! It dates back to at least 1823 in Cologne. The word Weiberfastnacht literally means women's abstinence night, however exactly the opposite of abstinence is to be expected! 15 hours of partying could hardly be called abstinence!