First Clear Evidence of Organized Feasting by Early Humans (http://www.sciencedaily.com/releases/2010/08/100830152526.htm)
QuoteScienceDaily (Aug. 30, 2010) â€" Community feasting is one of the most universal and important social behaviors found among humans. Now, scientists have found the earliest clear evidence of organized feasting, from a burial site dated about 12,000 years ago. These remains represent the first archaeological verification that human feasting began before the advent of agriculture...
It seems we have liked to party for a very long time indeed!