Over these past 20 years, it has become an annual rite of summer: the massive propane grills, 500 pounds of John Vaccaro’s homemade sausage, free ice cream, and rented port-a-
potties on the driveway of 102
Each year on July 12, Mayor Thomas M. Menino has hosted a sprawling block party outside his house in Readville, a sleepy and almost suburban neighborhood in the far reaches of Boston. The festival started in 1993, the day he became acting mayor. It was like a homecoming parade to mark a local boy’s ascension at City Hall, an Italian triumph in a city long dominated by the Irish.