Dig Beantown! Boston's City Archaeologist, Joe Bagley will discuss Boston's Archaeology Program's efforts to uncover hidden histories in Boston's historic places though community-based archaeology. The talk will include updates on recent archaeological digs, discuss the need for community activism in preserving Boston's archaeological heritage, and explore how archaeology plays a role in social and cultural issues. Meet at King’s Chapel Parish House, 64 Beacon Street, at 5:30 p.m. for hors d’oeuvres; program begins at 6 p.m. BHV/BHS members: Free. Guests and prospective members: $20.