Extended seating outside of Wrigley. EAMUS CATULI means Lets Go Cups in Latin. "The Brat" in reference to someone on the Brewers, since they were playing there the night before. AC0164101 = "AC," for "Anno Catuli" or "Year of the Cub." Afterward, the first two numbers are the number of years since the Cubs won the division[01], the middle two since the Cubs won the National League pennant[64], and the last three are the number of years since the Cubs last won the World Series[101].