From an AP story headlined “Beer flows and crowds descend on Munich for the start of Oktoberfest”:

The beer is flowing and millions of people descending on the Bavarian capital to celebrate the official opening of Oktoberfest.

With the traditional cry of “O’zapft is” — “It’s tapped” — Mayor Dieter Reiter inserted the tap in the first keg at noon on Saturday, officially opening the 18-day festivities.

Revelers decked out in traditional lederhosen and dirndl dresses trooped to Munich’s festival grounds Saturday morning, filling the dozens of traditional tents in anticipation of getting their first 2-pint mug of beer.