The Medford Council on Aging welcomes veteran arts journalist Nick Zaino for a talk exploring Boston’s long history of comedy, from vaudeville to YouTube, highlighting some of the personalities that have defined laughter in America for 100 years. Fred Allen found inspiration at the Boston Public Library to start his vaudeville career. Bob and Ray started their radio run in Gloucester at WHDH. Many more began their careers here, all are part of the fabric of the Boston comedy lore. Enjoy the history and laughter of what they brought to the stage. Tickets are $2 and will go on sale at the Senior Center on July 7.